CN1718767A - Work piece sealing transfer device of vertical heating treatment production line - Google Patents
Work piece sealing transfer device of vertical heating treatment production line Download PDFInfo
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- CN1718767A CN1718767A CN 200510027335 CN200510027335A CN1718767A CN 1718767 A CN1718767 A CN 1718767A CN 200510027335 CN200510027335 CN 200510027335 CN 200510027335 A CN200510027335 A CN 200510027335A CN 1718767 A CN1718767 A CN 1718767A
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Abstract
A sealed workpiece transferring system for a vertical heat treating line is composed of the protecting atmosphere system and vacuum system, which are respectively coupled with the upper and lower parts of heating furnace and the preheating furnace, an insulating vacuum sealing valve, movable sealing hood linked with its lift mechanism, the preheating furnace, furnace cover and quenching bath, which are arranged on a small train, and relative sealing rings.
Description
Technical field
What the present invention relates to is a kind of device that is used for the metal heat treatmet technical field, specifically, is a kind of Work piece sealing transfer device of vertical heating treatment production line.
Background technology
The forvacuum special atmosphere oven that uses in the factory has well formula, horizontal, two chamber and push-down successive type etc. multiple now, and they can be applicable to bright quenching, bright tempering and the clean annealing of different purposes workpiece respectively.But fixed, the single type of furnace of purposes that it mostly is, the poor expandability of its stove, the very flexible of production, production efficiency is low, and is unsuitable for the thermal treatment of macrotype axes series and tube kind part.Has more wide Application Areas in order to make forvacuum add special atmosphere oven; improve the handiness of its production and enhance productivity; different types of forvacuum need be added special atmosphere oven and different cooling units and combine and form forvacuum and add the protective atmosphere heat-treatment production line, but forvacuum adds the sealing branch problem that the key of protective atmosphere heat-treatment production line is a workpiece between each single stove.
Find through literature search prior art, introduced a kind of sealing docking facilities of multipurpose vertical vacuum oven on the P135 of " vacuum heat treatment process and equipment design " China Machine Press (1998), it comprises parts such as heating chamber, vacuum heat-insulation valve, intermediate chamber, quenching tank, dolly, it is by oil cylinder quenching tank jack-up to be docked with the lower seal of vacuum oven intermediate chamber, quenching tank is contained on the movable trolleys, and the workpiece that it can solve vertical vacuum furnace is transferred to the problem that oil groove quenches by the vacuum heating chamber sealing.But this structure exists the middle transition chamber oversize, and the vacuum heating chamber rate of heating is slow, has shortcomings such as furnace temperature is inhomogeneous, whole oil groove will be held up the structure heaviness during sealing butt joint in addition.This structure needing to be unsuitable for the forvacuum of convective heating to add protective atmosphere heat treatment furnace production line.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art; a kind of Work piece sealing transfer device of vertical heating treatment production line is provided; make it can be according to the theory of modular design; be combined into a kind of vertical forvacuum and add the protective atmosphere heat-treatment production line; can make the thermal treatment of part more flexible; efficient is higher, reduces the part Heat Treatment Distortion and reaches low or non oxidizing, do not have the purpose of decarburization bright heat treatment less, solves an actual production medium-and-large-sized axle class and a tube kind part thermal treatment difficult problem.
The present invention is achieved by the following technical solutions; the present invention includes: the protective atmosphere system; vacuum system; the workpiece lifting mechanism; process furnace; process furnace vacuum heat-insulation sealed gate; the seal closure hoisting appliance; the movable sealing cap assembly; blower fan; heating furnace cover; preheating oven vacuum heat-insulation sealed gate; the Butt sealing packing ring; preheating oven; furnace cover lifting mechanism; seal washer in the bell; dolly; quenching tank; its mode of connection is: protective atmosphere system and vacuum system link with process furnace upper and lower and preheating oven respectively (also can be preheating oven and join protective atmosphere system and vacuum system separately); the workpiece lifting mechanism is located at process furnace top; process furnace vacuum heat-insulation sealed gate is located at the middle and lower part of process furnace; the movable sealing cap assembly is located at the process furnace outer lower portion and is linked to each other with the seal closure hoisting appliance; blower fan is located on the heating furnace cover that is connected with furnace cover lifting mechanism; preheating oven top is provided with preheating oven vacuum heat-insulation sealed gate; preheating oven; be respectively equipped with the Butt sealing packing ring on heating furnace cover and the quenching tank; also be provided with seal washer in the bell on the heating furnace cover, preheating oven; heating furnace cover and quenching tank are located on the dolly.
Described movable sealing cap assembly has two kinds of structures:
A kind of structure comprises active ring, sealing-ring and fixed ring, and fixed ring and process furnace bottom link, and and process furnace between form annular dead slot, can annotate in the annular dead slot sealing oil or flexible sealing material etc.Sealing-ring is located at the fixed ring outside, and active ring and seal closure hoisting appliance link.Sealing oil by being located at outer sealing-ring of fixed ring and above-mentioned filling or flexible sealing material etc. can will seal between active ring and the fixed ring.
Another kind of structure comprises spring, clamp ring, sealing-ring, fixed ring and active ring, and fixed ring and process furnace bottom link, and are provided with thick sealing-ring between active ring and the fixed ring, and clamp ring is pressed on the thick sealing-ring, and spring is pressed on the clamp ring.Active ring and seal closure hoisting appliance link.
Active ring on the movable sealing cap assembly or thick sealing-ring slide up and down at the drive lower edge fixed ring or the fixed ring of seal closure hoisting appliance.
Heating furnace cover can move up and down under the drive of furnace cover lifting mechanism.
After workpiece moved into process furnace, heating furnace cover began to rise, and when seal washer compresses the lower surface of process furnace in the bell on the heating furnace cover, started blower fan, drives protective atmosphere and carry out convection circulation in process furnace, thereby workpiece is carried out convective heating.
When the present invention uses; with the work piece hoisting desiring to heat-treat in preheating oven; close preheating oven vacuum heat-insulation sealed gate; opening vacuum system vacuumizes preheating oven; when being evacuated to specified vacuum and spending; close vacuum system, open the protective atmosphere system and charge into protective atmosphere, begin workpiece is preheated to specified pressure.Close process furnace vacuum heat-insulation sealed gate, open vacuum system process furnace is vacuumized, when being evacuated to specified vacuum and spending, close vacuum system, open the protective atmosphere system and charge into protective atmosphere, make process furnace heat up then to specified pressure.When workpiece reaches the predetermined heating temperature in preheating oven; preheating oven is below the drive of dolly is displaced downwardly to process furnace; movable sealing cap assembly on the process furnace is on the Butt sealing packing ring that moves down and closely be pressed in preheating oven under the drive of seal closure hoisting appliance at this moment; form an airtight cavity between two vacuum heat-insulation gates; opening vacuum system vacuumizes this closed cavity; when being evacuated to specified vacuum and spending; close vacuum system, open the protective atmosphere system and charge into protective atmosphere to specified pressure.Then open process furnace vacuum heat-insulation sealed gate and preheating oven vacuum heat-insulation sealed gate simultaneously, the workpiece lifting mechanism descends, and rises in the process furnace upper furnace after hanging on workpiece.Close process furnace vacuum heat-insulation sealed gate and preheating oven vacuum heat-insulation sealed gate, movable sealing covers under the drive of seal closure hoisting appliance and climbs away preheating oven.Dolly is moved to the left and makes heating furnace cover be positioned at the process furnace below.Preheating oven can be prepared next workpiece of packing into.Heating furnace cover rises under the drive of furnace cover lifting mechanism and contacts and compress with movable sealing cover lower surface simultaneously; this moment, process furnace vacuum heat-insulation sealed gate kept closing condition; opening vacuum system vacuumizes the closed cavity between heating furnace cover and the process furnace vacuum heat-insulation sealed gate; when being evacuated to specified vacuum and spending; close vacuum system, open the protective atmosphere system and charge into protective atmosphere to specified pressure.Then open process furnace vacuum heat-insulation sealed gate, heating furnace cover drives the movable sealing cap assembly and rises together, stops to rise when seal washer in the bell on the heating furnace cover presses the lower surface of process furnace and compresses, and starts blower fan workpiece is carried out convective heating.When workpiece is heated to required temperature and time, close blower fan.Heating furnace cover is moved down, and the movable sealing cap assembly descends with heating furnace cover, after blower fan is deviate from the process furnace burner hearth, closes process furnace vacuum heat-insulation sealed gate.Heating furnace cover continues to drop to the home position, and the Butt sealing packing ring of heating furnace cover and the lower surface of active ring break away from, and the movable sealing cap assembly drives up and down at the seal closure hoisting appliance and rises simultaneously.Dolly moves to left; make quenching tank be positioned at process furnace under; the decline of movable sealing cap assembly presses the Butt sealing packing ring on the quenching tank; opening vacuum system vacuumizes the closed cavity between quenching tank top to the process furnace vacuum heat-insulation sealed gate below; when being evacuated to specified vacuum and spending; close vacuum system, open the protective atmosphere system and charge into protective atmosphere to specified pressure.Then open process furnace vacuum heat-insulation sealed gate, workpiece descends, and behind predetermined position in the workpiece dip quench groove, workpiece lifting mechanism and workpiece break away from and rise in the heating chamber, close process furnace vacuum heat-insulation sealed gate.When workpiece is finished quenching process in quenching tank after, move the Butt sealing packing ring that breaks away from quenching tank on the movable sealing cap assembly.Dolly moves to right and makes preheating oven be positioned at the process furnace below.In addition hang out workpiece in the quenching tank with crane.Next workpiece that reaches specified temperature in preheating oven repeats above step, and this heat-treatment production line just can go down in successive work like this.
The invention has the beneficial effects as follows: adopt the theory of modular design, be convenient to rationalization and constitute heat-treatment production line.Increased the heating furnace cover of band blower fan again, can blower fan stretched in the burner hearth, can be used for the convective heating of process furnace, made furnace temperature more even.Adopt this kind Work piece sealing transfer device, can be combined into a kind of vertical forvacuum and add the protective atmosphere heat-treatment production line, can make the thermal treatment of part more flexible, efficient is higher, is suitable for the thermal treatment of macrotype axes series and tube kind part.This heat-treatment production line has the advantage of vacuum oven and atmosphere furnace concurrently, can reduce bigger thin and long shafts or tube kind part Heat Treatment Distortion and the purpose that reaches the low or non oxidizing bright heat treatment, solves an actual production medium-and-large-sized axle class and a tube kind part thermal treatment difficult problem.By the theory of modular design, cooperates two preheating ovens, high-pressure gas quenching furnace and hang down in warm isothermobath (stove) etc. can constitute multiple heat-treatment production line.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 movable sealing cap assembly of the present invention structural representation (one)
Fig. 3 movable sealing cap assembly of the present invention structural representation (two)
Embodiment
As shown in Figure 1; the present invention includes: protective atmosphere system 1; vacuum system 2; workpiece lifting mechanism 3; process furnace 4; process furnace vacuum heat-insulation sealed gate 5; seal closure hoisting appliance 6; movable sealing cap assembly 7; blower fan 8; heating furnace cover 9; preheating oven vacuum heat-insulation sealed gate 10; Butt sealing packing ring 11; preheating oven 12; furnace cover lifting mechanism 13; seal washer 14 in the bell; dolly 15; quenching tank 16; its mode of connection is: protective atmosphere system 1 is connected with process furnace 4 upper and lowers and preheating oven 12 respectively with vacuum system 2; workpiece lifting mechanism 3 is located at process furnace 4 tops; process furnace vacuum heat-insulation sealed gate 5 is located at the middle and lower part of process furnace 4; movable sealing cap assembly 7 is located at the outer lower portion of process furnace 4 and is connected with seal closure hoisting appliance 6; blower fan 8 is located on the heating furnace cover 9 that is connected with furnace cover lifting mechanism 13; preheating oven 12 tops are provided with preheating oven vacuum heat-insulation sealed gate 10; preheating oven 12; be respectively equipped with Butt sealing packing ring 11 on heating furnace cover 9 and the quenching tank 16; also be provided with seal washer 14 in the bell on the heating furnace cover 9, preheating oven 12; heating furnace cover 9 and quenching tank 16 are located on the dolly 15.
Described movable sealing cap assembly 7 has two kinds of structures:
A kind of structure as shown in Figure 2, movable sealing cap assembly 7 comprises: active ring 17, sealing-ring 18 and fixed ring 19, fixed ring 19 links with process furnace 4 bottoms, and and process furnace between form annular dead slot, can annotate in the annular dead slot sealing oil or flexible sealing material etc.Sealing-ring 18 is located at fixed ring 19 outsides, and active ring 17 links with seal closure hoisting appliance 6.Sealing oil by being located at outer sealing-ring 18 of fixed ring 19 and above-mentioned filling or flexible sealing material etc. can will seal between active ring 17 and the fixed ring 19.
Another kind of structure as shown in Figure 3, comprise: spring 20, clamp ring 21, thick sealing-ring 22, fixed ring 23 and active ring 24, fixed ring 23 links with process furnace 4 bottoms, and thick sealing-ring 22 is located at active ring 24 inboards, clamp ring 21 is pressed on the thick sealing-ring 22, and spring 20 is pressed on the clamp ring 21.Active ring 24 links with seal closure hoisting appliance 6.
Active ring 17 on the movable sealing cap assembly 7 or active ring 24 and thick sealing-ring 22 slide up and down at the drive lower edge of seal closure hoisting appliance 6 fixed ring 19 or fixed ring 23.
Described heating furnace cover 9 moves up and down under the drive of furnace cover lifting mechanism 13.
Described preheating oven 12 or be provided with protective atmosphere system and vacuum system separately.
Claims (6)
1; a kind of Work piece sealing transfer device of vertical heating treatment production line; comprise: workpiece lifting mechanism (3); process furnace (4); process furnace vacuum heat-insulation sealed gate (5); furnace cover lifting mechanism (13); dolly (15); quenching tank (16); it is characterized in that; also comprise: protective atmosphere system (1); vacuum system (2); seal closure hoisting appliance (6); movable sealing cap assembly (7); blower fan (8); heating furnace cover (9); preheating oven vacuum heat-insulation sealed gate (10); Butt sealing packing ring (11); preheating oven (12); seal washer (14) in the bell; protective atmosphere system (1) is connected with process furnace (4) upper and lower and preheating oven (12) respectively with vacuum system (2); workpiece lifting mechanism (3) is located at process furnace (4) top; process furnace vacuum heat-insulation sealed gate (5) is located at the middle and lower part of process furnace (4); movable sealing cap assembly (7) is located at the outer lower portion of process furnace (4) and is connected with seal closure hoisting appliance (6); blower fan (8) is located on the heating furnace cover (9) that is connected with furnace cover lifting mechanism (13); preheating oven (12) top is provided with preheating oven vacuum heat-insulation sealed gate (10); preheating oven (12); be respectively equipped with Butt sealing packing ring (11) on heating furnace cover (9) and the quenching tank (16); also be provided with seal washer (14) in the bell on the heating furnace cover (9), preheating oven (12); heating furnace cover (9) and quenching tank (16) are located on the dolly (15).
2, the Work piece sealing transfer device of vertical heating treatment production line according to claim 1, it is characterized in that, described movable sealing cap assembly (7) comprising: active ring (17), sealing-ring (18) and fixed ring (19), fixed ring (19) links with process furnace (4) bottom, and and process furnace (4) between form annular dead slot, in the annular dead slot sealing oil or flexible sealing material are arranged, sealing-ring (18) is located at fixed ring (19) outside, active ring (17) links with seal closure hoisting appliance (6), seals by being located at outer sealing-ring (18) of fixed ring (19) and sealing oil or flexible sealing material between active ring (17) and the fixed ring (19).
3, according to the Work piece sealing transfer device of claim 1 or 2 described vertical heating treatment production lines, it is characterized in that, described movable sealing cap assembly (7) or comprise: spring (20), clamp ring (21), thick sealing-ring (22), fixed ring (23) and active ring (24), fixed ring (23) links with process furnace (4) bottom, thick sealing-ring (22) is located at active ring (24) inboard, clamp ring (21) is pressed on the thick sealing-ring (22), spring (20) is pressed on the clamp ring (21), and active ring (24) links with seal closure hoisting appliance (6).
4, the Work piece sealing transfer device of vertical heating treatment production line according to claim 1, it is characterized in that active ring (17) on the movable sealing cap assembly (7) or active ring (24) and thick sealing-ring (22) slide up and down at the drive lower edge of seal closure hoisting appliance (6) fixed ring (19) or fixed ring (23).
5, the Work piece sealing transfer device of vertical heating treatment production line according to claim 1 is characterized in that, described heating furnace cover (9) moves up and down under the drive of furnace cover lifting mechanism (13).
6, the Work piece sealing transfer device of vertical heating treatment production line according to claim 1 is characterized in that, described preheating oven (12) or be provided with protective atmosphere system and vacuum system separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100273353A CN1303227C (en) | 2005-06-30 | 2005-06-30 | Work piece sealing transfer device of vertical heating treatment production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100273353A CN1303227C (en) | 2005-06-30 | 2005-06-30 | Work piece sealing transfer device of vertical heating treatment production line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1718767A true CN1718767A (en) | 2006-01-11 |
| CN1303227C CN1303227C (en) | 2007-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100273353A Expired - Fee Related CN1303227C (en) | 2005-06-30 | 2005-06-30 | Work piece sealing transfer device of vertical heating treatment production line |
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| Country | Link |
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| CN (1) | CN1303227C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560032A (en) * | 2010-12-13 | 2012-07-11 | 苏州工业园区久禾工业炉有限公司 | Quenching processing system |
| CN103842758A (en) * | 2011-05-24 | 2014-06-04 | 自动压力机装置股份有限公司 | A method and an apparatus for reducing the heat loss in a heated workpiece |
| CN104451044A (en) * | 2014-12-31 | 2015-03-25 | 湖南顶立科技有限公司 | Vacuum quenching method |
| CN104911323A (en) * | 2007-12-13 | 2015-09-16 | 伊西康公司 | Rapid thermal treatment for enhancing bending stiffness and yield moment of curved needles |
| TWI510750B (en) * | 2009-10-09 | 2015-12-01 | Koyo Thermo Sys Co Ltd | Heat treatment apparatus |
| WO2016078200A1 (en) * | 2014-11-22 | 2016-05-26 | 唐山亚捷机械有限公司 | Production line for martensite or bainite isothermal salt bath quenching of high chromium bearing steel parts |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634648B (en) * | 2012-04-26 | 2015-01-07 | 广东世创金属科技有限公司 | Pit furnace with protective atmosphere device and automatic workpiece transferring device in quenching |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309171A (en) * | 1980-05-27 | 1982-01-05 | Granco Equipment, Inc. | Billet heating furnace with pressurized entrance seal |
| CN2410303Y (en) * | 2000-03-15 | 2000-12-13 | 彭景尧 | Multichamber continuous annealing furnace |
-
2005
- 2005-06-30 CN CNB2005100273353A patent/CN1303227C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104911323A (en) * | 2007-12-13 | 2015-09-16 | 伊西康公司 | Rapid thermal treatment for enhancing bending stiffness and yield moment of curved needles |
| TWI510750B (en) * | 2009-10-09 | 2015-12-01 | Koyo Thermo Sys Co Ltd | Heat treatment apparatus |
| CN102560032A (en) * | 2010-12-13 | 2012-07-11 | 苏州工业园区久禾工业炉有限公司 | Quenching processing system |
| CN103842758A (en) * | 2011-05-24 | 2014-06-04 | 自动压力机装置股份有限公司 | A method and an apparatus for reducing the heat loss in a heated workpiece |
| US9193541B2 (en) | 2011-05-24 | 2015-11-24 | Automation, Press And Tooling, A.P. & T Ab | Method and an apparatus for reducing the heat loss in a heated workpiece |
| CN103842758B (en) * | 2011-05-24 | 2016-06-08 | 自动压力机装置股份有限公司 | For reducing the method and apparatus of the heat loss in heated parts |
| WO2016078200A1 (en) * | 2014-11-22 | 2016-05-26 | 唐山亚捷机械有限公司 | Production line for martensite or bainite isothermal salt bath quenching of high chromium bearing steel parts |
| CN104451044A (en) * | 2014-12-31 | 2015-03-25 | 湖南顶立科技有限公司 | Vacuum quenching method |
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| CN1303227C (en) | 2007-03-07 |
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Granted publication date: 20070307 |