CN113774210A - Soaking pit furnace for spring production - Google Patents
Soaking pit furnace for spring production Download PDFInfo
- Publication number
- CN113774210A CN113774210A CN202111161714.7A CN202111161714A CN113774210A CN 113774210 A CN113774210 A CN 113774210A CN 202111161714 A CN202111161714 A CN 202111161714A CN 113774210 A CN113774210 A CN 113774210A
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- China
- Prior art keywords
- furnace
- soaking
- soaking pit
- spring production
- production according
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- 238000002791 soaking Methods 0.000 title claims abstract description 64
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 34
- 238000007599 discharging Methods 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 claims description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- 239000011094 fiberboard Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- 230000003068 static effect Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000010791 quenching Methods 0.000 description 6
- 230000000171 quenching effect Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000005262 decarbonization Methods 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention discloses a soaking pit furnace for spring production, which relates to the technical field of spring production and processing, and comprises a soaking pit furnace for spring production, a soaking pit furnace body, a feeding hole and a discharging hole which are arranged on the soaking pit furnace, the feed inlet and the discharge outlet are arranged at two sides of the soaking pit body, the feed inlet and the discharge outlet are both provided with cylinder doors, the feed inlet and the discharge outlet are symmetrically provided with feeding devices, the feeding devices comprise material plates, the bottom of the material plate is provided with a moving device which comprises a supporting frame connected with the material plate, the bottom of the support frame is connected with the air cylinder, the material plate is hinged with the support frame, and the second air cylinder is arranged at the hinged position.
Description
Technical Field
The invention relates to the technical field of spring production and processing, in particular to a soaking pit furnace for spring production.
Background
The surface quality and the material strength of the hot-rolled spiral spring determine the fatigue life of the spring, and the rolling heating quality of the spring in the manufacturing process is a key process for judging whether the two quality characteristic indexes can meet the requirements or not.
On one hand, because the hot-rolled spring needs to be heated and rolled at high temperature and then subjected to heat treatment, the oxidation of the material at high temperature is easy to form surface decarburization. If the surface has the fatigue life that will show the reduction spring when decarbonization phenomenon, but easy when carrying out heat treatment because the spring leads to the whole of spring to appear the difference in temperature when going out the rolling machine, and the effect of difference in temperature leads to can appear the influence of hardness inequality to spring life after the heat treatment.
Therefore, in order to solve the problem that the influence on the performance of the spring caused by the temperature difference before the heat treatment and the problem that the overall temperature of the spring can be ensured to be consistent before the spring is quenched, a soaking furnace for producing the spring is designed.
Disclosure of Invention
The invention aims to: in order to solve the problem that the strength of the spring after quenching and the temperature of a soaking pit are unstable due to uneven temperature before quenching in the prior art, the invention designs the soaking pit for producing the spring.
The invention specifically adopts the following technical scheme that the soaking pit for spring production comprises a soaking pit body, a feeding hole and a discharging hole which are arranged on the soaking pit body, wherein the feeding hole and the discharging hole are arranged on two sides of the soaking pit body, the lower surface of the soaking pit body is provided with a stepping structure in a penetrating way, the stepping structure comprises a static beam and a dynamic beam which are arranged in a staggered way, the dynamic beam is provided with a through hole with the horizontal direction larger than the length of the dynamic beam, the bottom of the dynamic beam is connected and provided with a hydraulic driving device, the hydraulic driving device comprises a fixed plate and a sliding plate which is arranged on the fixed plate and can horizontally move along the fixed plate, the dynamic beam is connected with the sliding plate, the sliding plate moves left and right, the bottom of the fixed plate is provided with a lifting device, the tops of the dynamic beam and the static beam are both provided with arc-shaped grooves, and the driving device and the lifting device are connected by adopting a connecting rod structure, the automatic feeding device is characterized in that the driving device is a first hydraulic cylinder, the lifting device is a second hydraulic cylinder, air cylinder doors are arranged at the feeding port and the discharging port, feeding devices are symmetrically arranged at the feeding port and the discharging port and comprise material plates, a moving device is arranged at the bottom of each material plate and comprises a supporting frame connected with the material plates, the bottom of each supporting frame is connected with an air cylinder, the material plates are hinged with the supporting frames, and an air cylinder is arranged at the hinged position.
Furthermore, when the movable beam and the static beam are on the same horizontal plane, the circle centers of the arc-shaped grooves at the tops are not on the same horizontal straight line, so that the circle centers are not corresponding in the advancing process, the spring can rotate in the advancing process, and the spring can be heated more uniformly under the condition that the rigidity is not influenced in the advancing process.
Furthermore, the material plate is provided with a blocking plate with the height of 0.2-0.5cm, so that the problem that the spring falls off due to the problems of inclination and the like in the feeding and discharging processes is avoided.
Further, the bottom of the soaking pit body is provided with a sliding rail, the bottom of the supporting frame is provided with a sliding block matched with the sliding rail, and the sliding block is connected with the air cylinder, so that the operation process is more stable.
Further, be equipped with the furnace lining outside the soaking pit body, the furnace lining includes first half and the latter half, first half is including setting up the fiber structure in the soaking pit body outside, fiber structure includes the fibre blanket of tiling on the furnace roof steel sheet and sets up at the outer fibre modular structure of fibre blanket, heat-resistant steel anchor assembly is fixed on the furnace roof steel sheet for the fibre module, the latter half includes the resistant firebrick structure of furnace body bottom, resistant firebrick bottom is equipped with the insulating layer, the insulating layer is the aluminium silicate fibreboard, accomplishes the further loss of effectual thermal-insulated effectual protection avoiding the heat.
Furthermore, the bottom of the soaking pit is provided with a supporting plate below the stepping structure, and the bottom of the supporting plate is provided with one or both of a lifting mechanism and a moving roller, so that the soaking pit can be moved conveniently or the height of the soaking pit can be adjusted according to the height of the assembly line.
Furthermore, be equipped with the closing plate on the walking beam, the closing plate is connected with the walking beam, the closing plate can follow the walking beam and remove, and when the walking beam removed in the hole, because the existence of hole can make thermal loss, increased the closing plate and can follow the walking beam and remove and can avoid thermal running water with unnecessary hole shutoff at any time.
Further, the inside both sides of soaking pit are equipped with turning board, turning board symmetry sets up, the nozzle sets up respectively in the both sides at soaking pit body top and the position that turning board corresponds for the both sides nozzle is direct to pass through the corner with the heat in the middle of leading, makes and to guarantee the even of furnace body internal temperature.
Furthermore, a control panel is arranged on the soaking pit body and electrically connected with a PLC (programmable logic controller), and the PLC controls the hydraulic driving device, the cylinder door and the feeding device to be electrically connected, so that intelligent automatic control is facilitated.
The working principle is as follows: this application is placed the spring on material board of material feeding unit then drives the material board and moves to the feed inlet, then the cylinder door of feed inlet department is opened, then inside the furnace body was sent into with the spring to material board slope, then the walking beam upward movement back among the step structure right movement then downstream is made a round trip after the leftward movement again, then the spring can slowly turn right movement at this motion in-process of walking beam promptly, then open the cylinder door of discharge gate again, then the material feeding unit of rethread discharge gate transports the spring out.
The invention has the following beneficial effects:
1. the spring quenching device is simple in structure, so that the spring can be effectively soaked before quenching, the problem that the hardness of the spring after quenching is different due to different temperatures of the spring in the quenching process is avoided, meanwhile, the stepping structure is adopted, the spring is not damaged while transportation is guaranteed, meanwhile, the spring can be uniformly heated, and the problem of local heating is avoided.
2. The feeding device is symmetrically arranged at the feeding port and the discharging port, so that the situation that people are burnt by hot gas due to manual feeding and discharging can be avoided, the cleanliness is guaranteed, the material plate is provided with the object blocking plate with the height of 0.2-0.5cm, the problem that a spring falls off due to the problems of inclination and the like in the feeding and discharging processes is avoided, the bottom of the soaking pit body is provided with the slide rail, the bottom of the support frame is provided with the slide block matched with the slide rail, and the slide block is connected with the air cylinder, so that the operation process is more stable.
3. The two sides in the soaking pit are provided with the corner plates which are symmetrically arranged, and the burners are respectively arranged at the two sides of the top of the soaking pit body and at the positions corresponding to the corner plates, so that the nozzles at the two sides directly guide heat to the middle through the corners, and the uniformity of the temperature in the pit body can be ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the feed apparatus of the present invention;
FIG. 3 is a schematic structural view of the present invention;
FIG. 4 is a schematic structural view of a step structure of the present invention;
reference numerals: 1-soaking pit body, 2-burner, 3-feeding device, 4-moving device, 5-corner plate, 6-supporting plate, 7-heat exchanger, 8-cylinder door, 9-stepping structure, 101-feeding hole, 102-discharging hole, 301-material plate, 302-blocking plate, 401-supporting frame, 402-cylinder, 403-cylinder II, 404-sliding block, 901-static beam and 902-dynamic beam.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operated, and thus, cannot be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 4, a soaking furnace for spring production comprises a soaking furnace body 1, and a feeding port 101 and a discharging port 102 which are arranged on the soaking furnace body, wherein doors are arranged at the feeding port 101 and the discharging port 102, the feeding port 101 and the discharging port 102 are arranged at two sides of the soaking furnace body 1, a stepping structure 9 is arranged on the lower surface of the soaking furnace body 1 in a penetrating manner, the stepping structure 9 comprises a static beam 901 and a dynamic beam 902 which are arranged in a staggered manner, a through hole which is larger than the dynamic beam 902 in the horizontal direction is arranged at the dynamic beam 902, a hydraulic driving device is connected and arranged at the bottom of the dynamic beam 902, the hydraulic driving device comprises a fixed plate and a sliding plate which is arranged on the fixed plate and can move horizontally along the fixed plate, the dynamic beam 902 is connected with the sliding plate, a driving device for driving the sliding plate to move left and right, a lifting device is arranged at the bottom of the fixed plate, arc-shaped grooves are arranged at the tops of the dynamic beam 902 and the static beam 901, the circular center of the arc-shaped groove at the top of the moving beam 902 and the static beam 901 is not on a horizontal straight line when the moving beam and the static beam are on the same horizontal plane, the driving device is connected with the lifting device through a connecting rod structure, the driving device is a first hydraulic cylinder, the lifting device is a second hydraulic cylinder, a temperature sensor is arranged inside the soaking pit, the feeding port 101 and the discharging port 102 are symmetrically provided with feeding devices 3, each feeding device 3 comprises a material plate 301, the bottom of the material plate 301 is provided with a moving device 4, each moving device 4 comprises a supporting frame 401 connected with the material plate 301, the bottom of the supporting frame 401 is connected with an air cylinder 402, the material plate 301 is hinged with the supporting frame 401, and the hinged position is provided with a second air cylinder 402.
The using method comprises the following steps: this application is placed the spring on material board 301 of material feeding unit 3 then drives material board 301 and moves to feed inlet 101, then cylinder 402 door 8 of feed inlet 101 department is opened, then inside material board 301 slope sent the spring into the furnace body, then move to the right after the walking beam 902 upward movement among the step structure 9 and then move to the left again and make a round trip to relapse, then the spring can slowly move to the right at this motion in-process of walking beam 902 promptly, then open cylinder 402 door 8 of discharge gate 102 again, then material feeding unit 3 through discharge gate 102 moves the spring out again.
Example 2
As shown in fig. 1, in order to enable the soaking pit to be fed into the soaking pit more smoothly, the embodiment is further improved on the basis of embodiment 1, specifically, a material blocking plate 302 with a height of 0.2-0.5cm is arranged on the material plate 301, a sliding rail is arranged at the bottom of the soaking pit body 1, a sliding block 404 matched with the sliding rail is arranged at the bottom of the supporting frame 401, and the sliding block 404 is connected with the air cylinder 402.
Example 3
As shown in fig. 1, in order to make the heat loss of the present invention less and better controlled, the embodiment is further improved on the basis of embodiment 2, specifically, a heat insulation layer is arranged outside the soaking pit body 1, the heat insulation layer is a fiber blanket, a sealing plate is arranged on the movable beam 902, the sealing plate is connected with the movable beam 902, the sealing plate can move along with the movable beam 902, a control panel is arranged on the soaking pit body 1, the control panel is electrically connected with a PLC, and the PLC controls and electrically connects the hydraulic driving device, the cylinder 402 door 8 and the feeding device 3.
The protection scope of the present invention is not limited to the above examples, and variations such as furnace shape and the like made by those skilled in the art on the basis of the present invention are within the protection scope.
Claims (10)
1. A soaking pit for spring production comprises a soaking pit body (1), and a feed inlet (101), a discharge outlet (102) and a burner (2) which are arranged on the soaking pit body (1), it is characterized in that the feeding hole (101) and the discharging hole (102) are symmetrically provided with feeding devices (3), the feeding device (3) comprises a material plate (301), a moving device (4) is arranged at the bottom of the material plate (301), the moving device (4) comprises a support frame (401) connected with the material plate (301), the bottom of the support frame (401) is connected with the cylinder (402), the material plate (301) is hinged with the support frame (401), a second air cylinder (403) is arranged at the hinged position, corner plates (5) are arranged at two sides in the soaking pit body (1), the corner plates (5) are symmetrically arranged, and the burners (2) are respectively arranged at the two sides of the top of the soaking pit body (1) and at the positions corresponding to the corner plates (5).
2. A soaking furnace for spring production according to claim 1, characterized in that: an object blocking plate (302) with the height of 0.2-0.5cm is arranged on the material plate (301).
3. A soaking furnace for spring production according to claim 1, characterized in that: the bottom of the soaking pit body (1) is provided with a slide rail, the bottom of the support frame (401) is provided with a slide block (404) matched with the slide rail, and the slide block (404) is connected with the air cylinder (402).
4. A soaking furnace for spring production according to claim 1, characterized in that: the soaking pit furnace body (1) is equipped with the furnace lining outward, the furnace lining includes first half and the latter half, first half is including setting up the fiber structure in the soaking pit furnace body outside, fiber structure includes the fibre blanket of tiling on the furnace roof steel sheet and sets up at the outer fibre modular structure of fibre blanket, heat-resistant steel anchor assembly is fixed on the furnace roof steel sheet for the fibre module, the latter half includes the resistant firebrick structure of furnace body bottom, resistant firebrick bottom is equipped with the insulating layer, the insulating layer is the aluminium silicate fiberboard.
5. A soaking furnace for spring production according to claim 1, characterized in that: the soaking pit is characterized in that a supporting plate (6) is arranged below the stepping structure at the bottom of the soaking pit body (1), and one or both of a lifting mechanism and a moving roller are arranged at the bottom of the supporting plate (6).
6. A soaking furnace for spring production according to claim 1, characterized in that: the burner (2) is a common burner, and the top in the middle of the soaking pit body (1) is provided with a heat exchanger (7).
7. A soaking furnace for spring production according to claim 1, characterized in that: the burner (2) is a self-preheating burner.
8. A soaking furnace for spring production according to claim 1, characterized in that: the soaking pit furnace body (1) is internally provided with a temperature sensor.
9. A soaking furnace for spring production according to claim 1, characterized in that: and the inlet and the outlet of the soaking pit furnace are both provided with cylinder doors (8).
10. A soaking furnace for spring production according to claim 9, characterized in that: the soaking pit furnace is characterized in that a control panel is arranged on the soaking pit furnace body (1), the control panel is electrically connected with a PLC, and the PLC controls the cylinder door (8) and the feeding device (3) to be electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111161714.7A CN113774210A (en) | 2021-09-30 | 2021-09-30 | Soaking pit furnace for spring production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111161714.7A CN113774210A (en) | 2021-09-30 | 2021-09-30 | Soaking pit furnace for spring production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113774210A true CN113774210A (en) | 2021-12-10 |
Family
ID=78854879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111161714.7A Pending CN113774210A (en) | 2021-09-30 | 2021-09-30 | Soaking pit furnace for spring production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113774210A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564140A (en) * | 2011-12-23 | 2012-07-11 | 莱芜钢铁股份有限公司 | Device for feeding materials from rear part of furnace for electric furnace |
| CN214172905U (en) * | 2021-01-19 | 2021-09-10 | 四川西南工业炉有限公司 | Stepping gas heating furnace |
| CN214172904U (en) * | 2021-01-19 | 2021-09-10 | 四川西南工业炉有限公司 | Stepping resistance heating furnace |
| CN214172941U (en) * | 2021-01-19 | 2021-09-10 | 四川西南工业炉有限公司 | Gas chamber type heating furnace |
-
2021
- 2021-09-30 CN CN202111161714.7A patent/CN113774210A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564140A (en) * | 2011-12-23 | 2012-07-11 | 莱芜钢铁股份有限公司 | Device for feeding materials from rear part of furnace for electric furnace |
| CN214172905U (en) * | 2021-01-19 | 2021-09-10 | 四川西南工业炉有限公司 | Stepping gas heating furnace |
| CN214172904U (en) * | 2021-01-19 | 2021-09-10 | 四川西南工业炉有限公司 | Stepping resistance heating furnace |
| CN214172941U (en) * | 2021-01-19 | 2021-09-10 | 四川西南工业炉有限公司 | Gas chamber type heating furnace |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211210 |
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| RJ01 | Rejection of invention patent application after publication |