CN211921645U - Gate-type controllable atmosphere gas-saving tunnel furnace - Google Patents
Gate-type controllable atmosphere gas-saving tunnel furnace Download PDFInfo
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- CN211921645U CN211921645U CN202020449552.1U CN202020449552U CN211921645U CN 211921645 U CN211921645 U CN 211921645U CN 202020449552 U CN202020449552 U CN 202020449552U CN 211921645 U CN211921645 U CN 211921645U
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Abstract
The utility model relates to a controllable atmosphere solar terms tunnel furnace of gate-type, it includes the furnace body that head and the tail is formed with inlet channel and exit channel, passes the inside conveyor of furnace body, the furnace body is including the entrance that connects gradually, high temperature muffle furnace, cooling zone and export section, inlet channel is formed in entrance and vertical downward offering, export channel is formed in export section and vertical offering downwards, the bottom of entrance and export section all is less than the bottom of high temperature muffle furnace, the entrance is provided with and is used for conveying the work piece to conveyor's feed mechanism, the export section is provided with the unloading mechanism that is used for outwards taking out the work piece. The utility model discloses have the effect that can play the solar term.
Description
Technical Field
The utility model belongs to the technical field of the industrial furnace technique and specifically relates to a controllable atmosphere solar terms tunnel furnace of gate-type.
Background
One of the major development directions of the heat treatment production technology is controlled atmosphere heat treatment, and non-oxidation heat treatment is realized by using controlled atmosphere. In the production of less variety and large scale, especially the bright quenching, annealing, carburizing and quenching, carbonitriding quenching and gas carbonitriding of carbon steel and general alloy structural steel parts still use controllable atmosphere as main means.
When carrying out controllable atmosphere heat treatment, often can use the tunnel furnace, convey the work piece by the conveyor in the tunnel furnace, and heat and cool off the work piece, in the heating process of work piece, need utilize controllable atmosphere to protect and avoid the work piece surface to be by oxidation, common protective gas is hydrogen, utilize hydrogen to fill in the tunnel, thereby empty the oxygen in the stove, ordinary tunnel furnace is in order to make hydrogen can stably fill in the stove, the orbit of work piece is the bridge structure in the tunnel furnace, then the entrance point and the exit end of tunnel furnace are less than high temperature muffle furnace bottom, make the hydrogen that the proportion is lighter can float in being in high-order tunnel furnace, thereby discharge the oxygen that the proportion is great from the entrance and the export of tunnel furnace.
Chinese patent bulletin is CN 204803374U's patent and discloses a stainless steel bright annealing stove, stainless steel bright annealing stove includes conveying support, drive arrangement, preceding transfer wheel, back transfer wheel, thermometer, steel band, annealing stove import, annealing stove export, one-level cooling jacket, second grade cooling jacket, the annealing stove passes through steel band conveying feeding and the ejection of compact, has replaced artifical pay-off, has increaseed work efficiency, and the annealing stove export is equipped with the thermometer, can monitor outlet temperature, and the annealing stove export is equipped with cooling system simultaneously, can accelerate the cooling rate of sintering material, and the inside circular roller frame that is equipped with of annealing stove can rotary heating for sintering temperature is more even, provides sintering quality, and the annealing stove top is equipped with clean bell, can conveniently carry out regular clearance to the heating pipe in the stove.
According to the technical scheme, in the operation process, the workpiece is conveyed into the annealing furnace by the steel belt for annealing, and because the workpiece has a certain size, in order to enable the workpiece to be conveyed into the annealing furnace smoothly, the sizes of the inlet and the outlet of the annealing furnace are large, so that the protective gas in the furnace body overflows, and the protection performance of the workpiece is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a portal controllable atmosphere solar term tunnel furnace, which can play the effect of solar term.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a controllable atmosphere solar terms tunnel furnace of gate-type, includes the furnace body that the head and the tail is formed with inlet channel and exit channel, passes the inside conveyor of furnace body, the furnace body is including inlet section, high temperature muffle furnace, cooling zone and the export section that connects gradually, inlet channel is formed in inlet section and vertical offering downwards, exit channel is formed in export section and vertical offering downwards, the bottom of inlet section and export section all is less than the bottom of high temperature muffle furnace, the inlet section is provided with and is used for conveying the work piece to conveyor's feed mechanism, the export section is provided with the unloading mechanism that is used for outwards taking out the work piece.
Through adopting above-mentioned technical scheme, make the equal vertical downwardly setting of inlet channel and outlet channel, make high temperature muffle furnace be higher than the bottom of entrance and outlet section, make inside the protective gas that the proportion is lighter can fill up whole furnace body, compared in prior art lengthened entrance and outlet section, make the inside protective gas of furnace body be difficult to excessive to then need not to last to the inside protective gas that fills in of furnace body, can reduce cost.
The present invention may be further configured in a preferred embodiment as: the conveying device comprises a push plate, a power cylinder, a feeding mechanism and a conveying mechanism, wherein the push plate is connected with the side wall of the high-temperature muffle furnace in a sliding mode along the horizontal direction in a sealing mode and is far away from the inlet section, the furnace body is arranged outside, and the power cylinder is connected with the push plate.
Through adopting above-mentioned technical scheme, carry the work piece to the position such as high with the inside diapire of high temperature muffle furnace when feed mechanism, rely on the power cylinder drive push pedal to move, the work piece that will be good side by side promotes towards the outlet section in step, make the work piece that is closest to outlet section one side promoted unloading mechanism department, thereby accomplish the material loading of a work piece, the unloading of a work piece, also make inside work piece pass through high temperature muffle furnace and cooling zone one by one, sealed gliding push pedal has reduced and has been used for setting up the opening size that conveyor need set up at the inlet section, reduce inside protective gas's excessive, play the effect of throttle.
The present invention may be further configured in a preferred embodiment as: feed mechanism holds carrier, drive material loading including connecting in the entrance and being vertical material loading vertical support, along vertical direction sliding connection in the material loading vertical support of work piece and hold the material loading power component that carrier removed, unloading mechanism holds the unloading power component that carrier removed including connecting in the export section and being vertical unloading vertical support, along vertical direction sliding connection in the unloading vertical support of work piece is used for holding the unloading of work piece and holding carrier, drive unloading, the entrance bottom is worn to locate by the vertical support bottom of material loading, export bottom is worn to locate by the vertical support bottom of unloading.
Through adopting above-mentioned technical scheme, utilize feed mechanism to carry the work piece to the position such as with conveyor height along entry channel, be convenient for carry the work piece to high temperature muffle furnace courage in, make feed mechanism and unloading mechanism's direction and the direction of delivery of work piece be perpendicular, make the protective gas of light proportion difficult to follow entry channel and exit channel and outwards spill over.
The present invention may be further configured in a preferred embodiment as: the end part of the piston rod of the power cylinder is connected with an adjusting rod which is coaxial with the piston rod of the power cylinder along the axial sliding direction of the piston rod of the power cylinder, the adjusting rod is connected with an adjusting block which is rotatably connected to the piston rod of the power cylinder through threads, and the push plate is connected to one side, far away from the power cylinder, of the adjusting rod.
Through adopting above-mentioned technical scheme, because different work pieces are different sizes, and the at every turn promotion stroke of power cylinder is certain, through changing the length of stretching out of adjusting the pole in the power cylinder piston rod, then can change the initial distance between push pedal and the work piece lateral wall according to the work piece of different sizes, make the motion of power cylinder in a stroke can drive the work piece and remove the width of work piece along its direction of delivery, make the removal of work piece in high temperature muffle furnace more stable.
The present invention may be further configured in a preferred embodiment as: the power cylinder piston rod has been seted up the spout along its axial, spout inner wall integrated into one piece has and is the stopper that is parallel with power cylinder piston rod axial, adjust the pole and set up and be the spacing groove of sliding connection with the stopper.
Through adopting above-mentioned technical scheme, utilize stopper and spacing groove to inlay the relative relation of establishing the slip mutually, make the pole of adjusting can be along the axial displacement of power cylinder piston rod under the drive of adjusting block to can more accurately adjust the initial position of push pedal.
The present invention may be further configured in a preferred embodiment as: the material loading power component rotates and connects in the material loading motor of material loading vertical support including connecting in material loading vertical support and being vertical material loading lead screw, drive material loading lead screw, material loading lead screw wears to establish and threaded connection holds carrier in the material loading, unloading power component just is vertical unloading lead screw, drive unloading lead screw rotation and connects in the unloading motor of unloading vertical support including connecting in unloading vertical support, unloading lead screw is worn to establish and threaded connection holds carrier in the unloading.
Through adopting above-mentioned technical scheme, utilize the material loading lead screw to make the material loading hold the carrier and take the work piece to stabilize upwards carry to the inside top of furnace body, make the work piece can be carried to the position such as height with the push pedal, make the work piece can be smoothly promoted to heating in the high temperature muffle furnace by the push pedal.
The present invention may be further configured in a preferred embodiment as: the material loading holds carrier and includes that threaded connection has material loading slider, integrated into one piece in the material loading slider of material loading lead screw and be the horizontally material loading flat board, the vertical lateral wall of material loading slider articulates there is material loading air cylinder, material loading air cylinder's piston rod articulates in the dull and stereotyped bottom of material loading, the unloading holds carrier and includes that threaded connection has the unloading slider, integrated into one piece in the unloading slider of unloading lead screw and be the horizontally unloading flat board, the vertical lateral wall of unloading slider articulates there is the unloading air cylinder, the piston rod of unloading air cylinder articulates in the dull and stereotyped bottom of unloading.
Through adopting above-mentioned technical scheme, outside work piece relies on the material loading cylinder can change the dull and stereotyped angle of material loading when moving to material loading carrier, makes the work piece can be transported to the dull and stereotyped surface of material loading, when material loading carrier carries the work piece to the outside, relies on unloading adjust the cylinder with the dull and stereotyped slope of unloading to make the work piece can be carried outwards.
To sum up, the utility model discloses a following controllable atmosphere solar terms tunnel furnace of at least gate-type beneficial technological effect:
the bottom of the inlet section and the bottom of the outlet section are lower than the bottom wall of the high-temperature muffle furnace, so that the whole furnace body can be filled with protective gas with low specific gravity, the overflow of the protective gas is reduced, and a better gas saving effect is achieved;
the push plate pushed by the power cylinder is used for conveying workpieces, so that the opening of the inlet section for penetrating the conveying device can be reduced, the overflow of internal protective gas is reduced, and a better gas saving effect is achieved.
Drawings
Fig. 1 is a schematic plan view of the first embodiment.
Fig. 2 is a partial sectional view mainly embodying the power cylinder in the second embodiment.
FIG. 3 is a schematic structural diagram of the third embodiment
Reference numeral, 1, a furnace body; 11. an inlet section; 12. a high temperature muffle furnace; 13. a cooling section; 14. an outlet section; 2. an inlet channel; 3. an outlet channel; 4. a conveying device; 41. pushing the plate; 42. a power cylinder; 5. a feeding mechanism; 51. a feeding vertical support; 52. a feeding bearing piece; 521. a feeding slide block; 522. feeding a flat plate; 523. a feeding adjusting cylinder; 53. a feeding power assembly; 531. feeding a lead screw; 532. a feeding motor; 6. a blanking mechanism; 61. blanking vertical supports; 62. a blanking bearing piece; 621. a blanking slide block; 622. blanking a flat plate; 623. a blanking adjusting cylinder; 63. a blanking power assembly; 631. feeding a lead screw; 632. a blanking motor; 7. adjusting a rod; 8. an adjusting block; 9. a chute; 10. a limiting block; 15. a limiting groove; 16. a flange plate; 17. a conveyor belt; 18. and a roller.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1, for the utility model discloses a controllable atmosphere solar terms tunnel furnace of gate-type, be formed with inlet channel 2 and exit channel 3's furnace body 1 including head and the tail, furnace body 1 is including the entrance 11 that connects gradually, high temperature muffle furnace 12, cooling zone 13 and export section 14, top inside furnace body 1 is provided with the conveyor 4 that is used for carrying the work piece, inlet channel 2 is formed in entrance 11 and vertical seting up downwards, exit channel 3 is formed in export section 14 and vertical seting up downwards, and entrance 11 and export section 14's bottom all is less than the bottom of high temperature muffle furnace 12, be provided with the feed mechanism 5 that is used for conveying the work piece to conveyor 4 department on upper portion in furnace body 1 in entrance 11, be provided with the unloading mechanism 6 that is used for outwards taking out the work piece in export section 14.
In order to convey a workpiece to a position with the same height as the push plate 41, the feeding mechanism 5 comprises a vertical feeding vertical support 51 fixedly connected to the bottom of the inlet section 11, the feeding vertical support 51 extends to a position close to the push plate 41 along the inlet channel 2 and is lower than the bottom of the push plate 41, the feeding vertical support 51 is rotatably connected with a feeding screw 531 parallel to the length direction of the feeding vertical support, the feeding screw 531 penetrates through and is in threaded connection with a feeding slider 521, the feeding slider 521 is in sliding connection with the feeding vertical support 51 along the vertical direction, the top of the vertical side wall of the feeding slider 521 is hinged with a horizontal feeding flat plate 522, the feeding flat plate 522 and the feeding slider 521 form a feeding bearing part 52, the vertical side wall of the feeding slider 521 is hinged with a feeding adjusting cylinder 523 which is obliquely arranged, and the end part of a piston rod of the feeding adjusting cylinder 523 is hinged to the bottom of the feeding flat plate 522, a feeding motor 532 for driving the feeding screw 531 to rotate is fixedly arranged on the feeding vertical bracket 51. When the loading screw 531 drives the loading bearing 52 to move to the highest point, the upper surface of the loading flat plate 522 is slightly lower than the bottom of the push plate 41. Then under the driving of the power cylinder 42, the workpiece on the feeding flat plate 522 can be pushed to the bottom wall in the high temperature muffle furnace 12, and at the same time, the last workpiece is pushed to the discharging mechanism 6, the discharging mechanism 6 includes a vertical discharging vertical support 61 fixedly connected to the bottom of the outlet section 14, the discharging vertical support 61 extends to the bottom of the outlet section 14 along the outlet channel 3, the discharging vertical support 61 is rotatably connected with a discharging screw 631 parallel to the length direction thereof, the discharging screw 631 penetrates and is in threaded connection with a discharging slider 621, the discharging slider 621 is slidably connected to the discharging vertical support 61 along the vertical direction, the top of the vertical side wall of the discharging slider 621 is hinged with a horizontal discharging flat plate 622, the discharging flat 622 and the discharging slider 621 form a discharging carrier 62, and a discharging adjusting cylinder 623 obliquely arranged is hinged to the vertical side wall of the discharging slider 621, the end of the piston rod of the discharging adjusting cylinder 623 is hinged to the bottom of the discharging flat plate 622, and a discharging motor 632 for driving the discharging screw 631 to rotate is fixedly mounted on the discharging vertical support 61.
In the actual working process, the workpieces are conveyed upwards to the position with the same height as the push plate 41 inside the furnace body 1 by the feeding mechanism 5, the push plate 41 is pushed by the power cylinder 42 to move the workpieces towards the outlet section 14, so that the workpieces on the upper surface of the feeding flat plate 522 are pushed to the inner wall of the horizontal part of the inlet section 11, synchronously, the last workpiece is pushed to the surface of the discharging flat plate 622, after the push plate 41 of the power cylinder 42 retracts, the feeding screw 531 and the discharging screw 631 rotate to enable the feeding carrier 52 and the discharging carrier 62 to move to the bottom, the piston rods of the feeding adjusting cylinder 523 and the discharging adjusting cylinder 623 retract, the feeding flat plate 522 and the discharging flat plate 622 are inclined at a certain angle, a next workpiece to be heated is conveyed to the surface of the feeding flat plate 522, and the workpiece on the surface of the discharging flat plate 622 can be conveyed outwards through an external conveying belt.
Example two:
a door type atmosphere-controllable gas-saving tunnel furnace is different from the first embodiment in that, as shown in figure 2, a chute 9 is arranged on a piston rod of a power cylinder 42 along the axial direction, an adjusting rod 7 is connected in the chute 9 in a sliding way, one end of the adjusting rod 7 far away from the power cylinder 42 is connected to the side wall of a push plate 41 in a rotating way, a limit block 10 which is parallel to the axial direction of the piston rod of the power cylinder 42 is formed on the inner wall of the chute 9 in an integrated way, a limit groove 15 which is connected with the limit block 10 in a sliding way is arranged on the outer wall of the adjusting rod 7 along the axial direction, in order to drive the adjusting rod 7 to move, a cylindrical adjusting block 8 is arranged on the adjusting rod 7 in a penetrating way and in threaded connection, the adjusting block 8 is connected to the end face of the piston rod of the power cylinder 42 in a rotating, the initial distance between the push plate 41 and the side wall of the workpiece can be changed according to workpieces with different sizes, so that the movement of the power cylinder 42 in one stroke can drive the workpiece to move the width of the workpiece along the conveying direction of the workpiece, and the workpiece can move more stably in the high-temperature muffle furnace 12.
Example three:
a door type controlled atmosphere gas-saving tunnel furnace is different from the first embodiment in that as shown in figure 3, a conveying device is arranged in the furnace body 1, the conveying device comprises a conveying belt 17, the conveying belt 17 can be a conveying chain plate and is arranged in a rectangular circulation manner, four corners of the furnace body 1, which are positioned at the inner ring of the conveying belt 17, are respectively and rotatably connected with a roller 18 which is abutted against the inner wall of the conveying belt 17, one of the rollers 18 is connected with a motor which drives the roller 18 to rotate, a feeding mechanism 5 is used for conveying a workpiece to the position with the same height as that of a push plate 41 in the furnace body 1, the push plate 41 is pushed by a power cylinder 42 to move the workpiece towards an outlet section 14, the workpiece on the upper surface of a feeding flat plate 522 is pushed to the surface of the conveying belt 17, the conveying belt 17 which rotates in a circulation manner can enable the workpiece to sequentially pass through a high, the work is then transferred to the outside by the blanking plate 622.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. The utility model provides a controllable atmosphere solar terms tunnel furnace of gate-type, includes furnace body (1) that end to end is formed with inlet channel (2) and exit channel (3), passes inside conveyor (4) of furnace body (1), furnace body (1) is including inlet section (11), high temperature muffle furnace (12), cooling zone (13) and export section (14) that connect gradually, its characterized in that: entrance way (2) are formed with in entrance section (11) and vertical down offer, exit channel (3) are formed with in export section (14) and vertical down offer, the bottom of entrance section (11) and export section (14) all is less than the bottom of high temperature muffle furnace (12), entrance section (11) are provided with feed mechanism (5) that are used for conveying the work piece to conveyor (4), export section (14) are provided with and are used for outwards taking out unloading mechanism (6) with the work piece.
2. The door-type controlled atmosphere gas-saving tunnel furnace according to claim 1, wherein: conveyor (4) including following sealed sliding connection in horizontal direction in entrance (11) and keeping away from push pedal (41) of a high temperature muffle furnace (12) lateral wall, arrange furnace body (1) outside and connect in power cylinder (42) of push pedal (41), work piece promotion to the inside diapire of furnace body (1) on feed mechanism (5) is pushed in push pedal (41).
3. The door-type controlled atmosphere gas-saving tunnel furnace according to claim 1, wherein: feeding mechanism (5) including connect in entry section (11) and be vertical material loading vertical support (51), along vertical direction sliding connection in vertical support (51) of material loading be used for bearing the work piece material loading hold carrier (52), drive material loading hold carrier (52) material loading power component (53) that remove, unloading mechanism (6) including connect in exit section (14) and be vertical unloading vertical support (61), along vertical direction sliding connection in unloading vertical support (61) be used for bearing work piece unloading hold carrier (62), drive unloading hold carrier (62) unloading power component (63) that remove, entry section (11) bottom is worn to locate to vertical support (51) bottom of material loading, export section (14) bottom is worn to locate to unloading vertical support (61) bottom.
4. The door-type controlled atmosphere gas-saving tunnel furnace according to claim 2, wherein: the end part of a piston rod of the power cylinder (42) is connected with an adjusting rod (7) which is coaxial with the piston rod of the power cylinder (42) along the axial sliding direction of the end part, the adjusting rod (7) is connected with an adjusting block (8) which is rotatably connected with the piston rod of the power cylinder (42) in a threaded manner, and the push plate (41) is connected to one side, far away from the power cylinder (42), of the adjusting rod (7).
5. The door-type controlled atmosphere gas-saving tunnel furnace according to claim 4, wherein: the power cylinder (42) piston rod has seted up spout (9) along its axial, spout (9) inner wall integrated into one piece has stopper (10) that are parallel with power cylinder (42) piston rod axial, adjust pole (7) and seted up spacing groove (15) that are the connection of sliding with stopper (10).
6. The door-type controlled atmosphere gas-saving tunnel furnace according to claim 3, wherein: material loading power component (53) just is vertical material loading lead screw (531), drive material loading lead screw (531) including connecting in material loading vertical support (51) and rotates and connect in material loading motor (532) of material loading vertical support (51), material loading lead screw (531) are worn to establish and threaded connection holds carrier (52) in the material loading, unloading power component (63) just is vertical unloading lead screw (631), drive unloading lead screw (631) and rotates and connect in unloading motor (632) of unloading vertical support (61) including connecting in unloading vertical support (61), unloading lead screw (631) are worn to establish and threaded connection holds carrier (62) in the unloading.
7. The door-type controlled atmosphere gas-saving tunnel furnace according to claim 6, wherein: the utility model discloses a material loading device, including material loading slider (521) of material loading lead screw (531), material loading carrier (52), hinge in material loading slider (521) and be horizontally material loading flat plate (522), the vertical lateral wall of material loading slider (521) articulates there is material loading air adjusting cylinder (523), the piston rod of material loading air adjusting cylinder (523) articulates in material loading flat plate (522) bottom, material unloading carrier (62) include threaded connection in unloading slider (621) of unloading lead screw (631), articulate in unloading slider (621) and be horizontally unloading flat plate (622), the vertical lateral wall of unloading slider (621) articulates there is unloading air adjusting cylinder (623), the piston rod of unloading air adjusting cylinder (623) articulates in unloading flat plate (622) bottom.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020449552.1U CN211921645U (en) | 2020-03-31 | 2020-03-31 | Gate-type controllable atmosphere gas-saving tunnel furnace |
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| CN202020449552.1U CN211921645U (en) | 2020-03-31 | 2020-03-31 | Gate-type controllable atmosphere gas-saving tunnel furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113426644A (en) * | 2021-06-30 | 2021-09-24 | 深圳市浩宝技术有限公司 | Circulating transmission type curing device |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113426644A (en) * | 2021-06-30 | 2021-09-24 | 深圳市浩宝技术有限公司 | Circulating transmission type curing device |
| CN113426644B (en) * | 2021-06-30 | 2023-03-03 | 深圳市浩宝技术有限公司 | Circulating transmission type curing device |
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