CN116536498A - Furnace door of a multi-layer tempering furnace - Google Patents

Abstract

This application relates to the technical field of metal heat treatment equipment, and discloses a furnace door of a multi-layer tempering furnace, which solves the problem that when the related flip-type furnace door is applied to the multi-layer tempering equipment, when the furnace door is closed, the furnace door of each layer is closed. 1. The problem of poor sealing between the furnace door and the furnace mouth, which includes a furnace body and a plurality of furnace doors installed on the furnace body, the furnace body has a furnace mouth, and the furnace door is opposite to the furnace mouth The multiple furnace doors are arranged vertically from top to bottom, and the furnace doors are slidingly connected with the furnace body, the projections of the multiple furnace doors in the vertical direction coincide, and the distance between the furnace doors and the furnace body There is an opening and closing mechanism for opening the furnace mouth opposite to any furnace door, and the opening and closing mechanism includes a sliding assembly that drives any furnace door to open and a driving assembly that drives the sliding assembly to slide. Therefore, when the furnace door is opened, each layered charge can be quickly discharged, and at the same time, when the furnace door is closed, the overall sealing performance of the furnace body is good.

Description

Furnace door of a multi-layer tempering furnace

technical field

The present application relates to the technical field of metal heat treatment equipment, in particular to a furnace door of a multi-layer tempering furnace.

Background technique

Tempering furnaces are usually used for tempering general metal parts in air and quenching, annealing and aging heat treatment processes for light alloy parts.

At present, in order to improve production efficiency and save energy consumption, the tempering equipment in the continuous heat treatment production line often adopts the method of tempering multiple layers of charge at the same time. Furnace door structure includes flip type, sliding type and folding type etc.

The relevant flip-type tempering furnace door is for example the Chinese patent whose authorization notification number is CN 210980811 U, which discloses a flip-type furnace door, including a furnace door frame installed at the furnace mouth, and a furnace door body is installed on the furnace door frame. When the furnace door body is closed, the opening of the furnace door frame is closed, wherein, the upper and lower sides of the central axis of the furnace door body are respectively provided with an upper shaft column and a lower shaft column, and the central axis direction of the furnace door frame is provided with an upper shaft column and a lower shaft column. The shaft hole matched with the shaft column enables the furnace door body to rotate along its central axis, and the lower shaft column passes through the furnace door frame and extends outside the furnace door frame to form a handle, and the furnace door can be turned to open and close by turning the handle.

When the flip-type furnace door is applied to multi-layer tempering equipment, multiple furnace doors are rotated on the furnace body respectively, and the furnace mouth can be opened or closed by flipping the furnace door, but when the furnace door is opened, the rotation envelope angle during the flipping process The scope involved is relatively large, resulting in too long transfer time when the furnace charge passes through the furnace door when it is discharged from the furnace, and when the furnace door is closed, the sealing between the furnace doors of each layer and between the furnace door and the furnace mouth is not good.

Contents of the invention

In order to improve the sealing performance of the furnace body as a whole when the furnace door is closed, the present application provides a furnace door of a multi-layer tempering furnace.

The furnace door of a kind of multilayer tempering furnace provided by the application adopts the following technical scheme:

A furnace door of a multi-layer tempering furnace, comprising a furnace body and a plurality of furnace doors installed on the furnace body, the furnace body has a furnace mouth, the furnace door is arranged opposite to the furnace mouth, and a plurality of the furnace The doors are arranged vertically from top to bottom, and the furnace doors are slidingly connected with the furnace body. The projections of multiple furnace doors in the vertical direction overlap. The opening and closing mechanism in which the furnace mouth opposite to the door is opened. The opening and closing mechanism includes a sliding assembly that drives any furnace door to open and a driving assembly that drives the sliding assembly to slide.

By adopting the above technical scheme, in order to ensure that the charge of any layer of the multi-layer tempering equipment can be quickly discharged through the furnace mouth, the furnace door slides upward under the action of the sliding assembly, so that the furnace door originally facing the furnace door is opened. , to realize discharge, when the furnace mouth needs to be closed, the furnace door can return to the original position of the furnace door under the action of the sliding assembly and the driving assembly, so as to realize the sealing of the furnace body and ensure the overall sealing of the furnace body.

Optionally, two parallel side walls of the furnace door are fixed with hanging rods, and the furnace body is fixed with a hook opposite to the hanging rods. When the hanging rods are connected to the hooks, the furnace door will The mouth of the furnace is blocked so that the furnace mouth is in a closed state; when the hanging rod is far away from the hook, the furnace mouth facing the furnace door is exposed so that the furnace mouth is in an open state;

The driving assembly includes a hoisting cylinder fixed directly above the furnace door, the sliding assembly includes a hoisting frame located outside the multiple furnace doors, the output end of the hoisting cylinder is fixedly connected to the top of the hoisting frame, and the lifting frame is A movable frame is installed, and the movable frame includes an insertion rod that can approach or move away from the side wall of the furnace door, and a waist-shaped hole is opened on the side wall of the furnace door, and the insertion rod is arranged opposite to the waist-shaped hole, and The insertion rod can be inserted into the waist hole.

By adopting the above technical scheme, when the furnace door is closed, the multiple furnace doors are blocked at the furnace mouth by connecting the hanging rod with the hook, so that the furnace mouth is in a sealed state; when any furnace door needs to be opened to discharge, Drive the cylinder to drive the lifting frame to move, so that the movable frame on the lifting frame is opposite to the furnace door, and the movable frame moves towards the direction close to the furnace door, so that after the insertion rod is inserted into the waist hole, the lifting cylinder drives the lifting frame upwards Slide to realize the upward sliding of the furnace door. At this time, the hanging rod is separated from the hook, so that the layered furnace door is opened.

Optionally, each of the hooks has a slope that gradually inclines upward from the side close to the furnace body to the side away from the furnace body, and one side of each furnace door is hooked by at least two hooks. The projections of the two hooks on the vertical plane do not coincide.

By adopting the above technical scheme, when the hanging rod is hooked on the hook with an inclined surface, the furnace door will slide the hanging rod along the inclined surface of the hook under the action of its own gravity, and the furnace door will be close to the furnace mouth. In this way, the furnace door relies on its own weight to enhance the sealing effect between the furnace body; one side of each furnace door is hooked by at least two hooks, which enhances the seal between the furnace door and the furnace body, and the two The projections of the two hooks on the vertical plane do not overlap, which ensures the normal sliding of the hanging rod on the furnace door when sliding upward.

Optionally, the cross-section of the waist-shaped hole is gradually inclined upward from the direction away from the furnace mouth to the direction close to the furnace mouth.

By adopting the above technical scheme, when the insertion rod is inserted into the waist-shaped hole, the insertion rod slides in the waist-shaped hole when the hoisting cylinder drives the lifting frame to slide, and the self-weight of the furnace door is used to cooperate with the linkage of the movable frame. Ensure that the furnace door can move outward independently during the opening or closing process of the furnace door, so as to realize the loosening and compression of the furnace door in the horizontal direction.

Optionally, the side of the furnace body close to the furnace door is provided with a sealing guide groove, and a packing is fixed in the sealing guide groove, and the furnace door is tightly pressed against the packing.

By adopting the above technical scheme, when the furnace door closes the furnace mouth, the furnace door relies on its own weight to approach the sealing guide groove and press against the packing, thereby enhancing the sealing between the furnace door and the furnace body.

Optionally, raceways are fixed on both sides of the furnace mouth, and the raceways are vertically arranged on the furnace body. Sliding posts are fixed on one side of the plurality of furnace doors close to the raceways, and the sliding posts extend into the raceway and slidingly connected with the raceway;

The sliding assembly includes a sliding frame, the sliding frame includes at least two sliding seats, the sides of the two raceways away from each other are fixed with sliding tracks, the sliding seats are opposite to the sliding tracks one by one, and the The sliding seat is slidably connected with the slideway, and a moving rod is fixedly connected between the two sliding seats. The sliding cylinders are fixed on the sliding seats, and the side wall of the furnace door close to the raceway is also provided with a socket. The output end of the sliding cylinder can be plugged into the jack.

By adopting the above technical scheme, the sliding frame can slide vertically under the drive of the drive assembly. When the furnace door corresponding to a certain layer needs to be opened, the sliding frame slides to the corresponding furnace door, and the output end of the sliding cylinder is inserted into the After the hole is inserted, the furnace door slides together with the sliding frame, and the sliding column is slidably connected with the slideway, which enhances the sliding stability of the furnace door.

Optionally, a sealing structure is provided between a plurality of the furnace doors, and the sealing structure includes a sealing block fixed on the lower side of the furnace door and a sealing groove provided on the upper side of the furnace door, and the sealing block, the sealing groove and the furnace The doors have the same length, and the sealing block fits into the sealing groove.

By adopting the above technical solution, when the furnace door is closed, the weight of multiple furnace doors is applied to the furnace door at the bottom, and at the same time, the sealing block is plugged into the sealing groove to further enhance the sealing between the furnace doors.

Optionally, the sealing structure further includes a pressing rack installed in the furnace door, and the upper end of the furnace door is provided with a pressing groove penetrating with the sealing groove. The holes are through-connected, the upper end of the pressing rack can protrude from the pressing groove, and both sides of the pressing rack are meshed with pressing gears, the pressing gears are rotatably installed in the pressing groove, and the pressing gears are mounted in the pressing groove. The side wall of the tightening gear is fixed with a pressing rod, and the end of the pressing rod away from the pressing gear is bent towards the direction of approaching each other. The tight rod abuts against the slot.

By adopting the above-mentioned technical solution, when the sealing block of the furnace door fits into the sealing groove, the sealing block gives a force to slide down against the rack, so that the pressing gear rotates, and the pressing rod moves toward the side of the sealing block. The direction is tight in the slot, further enhancing the sealing between the furnace doors.

Optionally, a first spring is fixed at the end of the pressing rack far away from the pressing rod, and a supporting rod is fixed at the end of the first spring away from the pressing rack, and the supporting rod can extend into the socket;

A translation rod is slidably installed in the socket, a second spring is fixed between the translation rod and the bottom wall of the socket, a through hole is opened on the translation rod, and the translation rod slides towards the direction close to the support rod , the support rod is opposite to the through hole.

By adopting the above technical solution, when the sealing block fits into the sealing groove, it moves downward against the rack, so that the first spring is compressed, and when the output end of the sliding cylinder is inserted into the socket, the translation rod is forced toward the support The direction of the rod slides so that the through hole is opposite to the socket. At this time, the support rod falls into the through hole, and the first spring returns to the initial state, which enhances the stability between the furnace doors when the furnace door is moved by the sliding frame.

Optionally, there is also a separation hole connected to the through hole in the furnace door, the separation hole is opposite to and connected to the pressing groove on the adjacent furnace door, and a device that can be installed in the separation hole A partition bar that slides up and down in the partition hole, the upper end of the partition bar has a slope that inclines downward from the direction close to the through hole to the direction away from the through hole, the lower end of the partition bar is fixed with a partition block, and the partition block can be Inserted into the furnace door located below, and the two ends of the partition block abut against the pressing gear.

By adopting the above technical scheme, when the translation rod is in the socket, the upper end of the partition rod is plugged into the through hole, and when the output end of the sliding cylinder is inserted into the socket to drive the translation rod to slide horizontally, the partition rod slides downward and is inserted into the bottom In the pressing groove, the partition block abuts against the two pressing gears, so that the two pressing gears are separated from each other, and at the same time, the effect that the pressing plate is separated from the slot is realized, which facilitates the opening of the furnace door.

In summary, the present application includes at least one of the following beneficial technical effects:

1. In order to ensure that the charge of any layer of the multi-layer tempering equipment can be quickly discharged through the furnace mouth, the furnace door slides upward under the action of the sliding assembly, so that the furnace door originally facing the furnace door is opened to realize the discharge , when the furnace mouth needs to be closed, the furnace door can return to the original position of the furnace door under the action of the sliding assembly and the driving assembly, so as to realize the sealing of the furnace body and ensure the overall sealing of the furnace body;

2. When the hanging rod is hooked on the hook with a slope, the furnace door will slide along the slope of the hook under its own gravity, and the furnace door will be close to the furnace mouth, so that the furnace door Rely on the self-weight to enhance the sealing effect between the furnace body;

3. When the insertion rod is plugged into the waist-shaped hole, when the hoisting cylinder drives the lifting frame to slide, the insertion rod slides in the waist-shaped hole, and the self-weight of the furnace door cooperates with the linkage of the movable frame to ensure that the furnace mouth is in the During the process of opening or closing, the furnace door can move outward independently to realize the loosening and compression of the furnace door in the horizontal direction.

Description of drawings

Fig. 1 is an explosion schematic diagram of the furnace door and the furnace body in Example 1 of the present application.

Fig. 2 is a partially enlarged view of the furnace door and furnace body in Fig. 1 in Example 1 of the present application.

Fig. 3 is a schematic exploded view of the furnace door and furnace body in Example 2 of the present application.

Fig. 4 is a schematic structural diagram of a driving assembly according to Embodiment 2 of the present application.

Fig. 5 is a first cross-sectional view of the furnace door and sealing structure according to Embodiment 3 of the present application.

FIG. 6 is a structural schematic diagram of the sealing structure of Embodiment 3 of the present application.

Fig. 7 is a second cross-sectional view of the furnace door and sealing structure in Example 3 of the present application.

FIG. 8 is a structural schematic diagram of the separation rod and the sealing structure of Embodiment 3 of the present application.

Description of reference signs: 1, furnace body; 11, furnace mouth; 12, guide rail; 13, hook; 14, sealing guide groove; 141, packing; 15, raceway; 151, first platform; 152, second Platform; 16, slideway; 2, furnace door; 21, hanging rod; 22, waist-shaped hole; 23, sliding column; 24, jack; 25, tight groove; 26, connecting groove; 27, separation hole; 28 , limit slot; 3, sliding assembly; 31, hoisting frame; 311, vertical rod; 32, movable roller; 33, movable frame; 331, plug rod; 332, connecting rod; 34, driving cylinder; 35, sliding frame ; 351, sliding seat; 352, moving rod; 353, sliding cylinder; 4, drive assembly; 41, hoisting cylinder; 42, first driven chain; 43, second driven chain; 44, counterweight block; 441, Limit cylinder; 45, the first sprocket; 46, the second sprocket; 47, the third sprocket; 48, the fourth sprocket; 49, driving motor; 491, driving sprocket; 492, driving chain; 5, Sealing structure; 51, sealing block; 511, slotting; 52, sealing groove; 53, pressing rack; 54, pressing gear; 541, pressing rod; 542, flat plate; 543, mounting seat; 544, pressing Spring; 55, first spring; 56, support rod; 57, translation rod; 571, through hole; 58, second spring; 6, separation rod; 61, separation block; 62, limit block; 63, third spring .

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 1-8.

The embodiment of the present application discloses a furnace door of a multi-layer tempering furnace.

Example 1

Referring to Fig. 1, a furnace door of a multi-layer tempering furnace includes a furnace body 1 and a plurality of furnace doors 2 slidingly installed on the furnace body 1. There are three furnace doors 2 in this embodiment, and the furnace body 1 is equipped with a The furnace mouth 11 where the furnace material is discharged, the three furnace doors 2 are vertically arranged at the furnace mouth 11, and the projections of the three furnace doors 2 in the vertical direction coincide, and the three furnace doors 2 jointly block the furnace mouth 11, To ensure the overall airtightness of the furnace body 1, an opening and closing mechanism is installed between the furnace body 1 and the furnace door 2. The opening and closing mechanism includes a sliding assembly 3 and a driving assembly 4 for opening the furnace door 2; one furnace door 2 corresponds to the furnace body 1 When a single layer or multi-layer furnace charge needs to be discharged, only the corresponding furnace door 2 needs to be opened to expose the corresponding furnace mouth 11, and the driving assembly 4 drives the sliding assembly 3 to slide on the furnace body 1 , the sliding assembly 3 drives the furnace door 2 to slide on the furnace body 1, thereby achieving the effect of opening the corresponding furnace door 2.

Referring to Fig. 1 and Fig. 2, the sliding assembly 3 includes a hoisting frame 31 slidably installed on the furnace body 1, the hoisting frame 31 is vertically arranged, the hoisting frame 31 is located on the outside of the three furnace doors 2, and the four corners of the hoisting frame 31 All are fixed with movable roller 32, and movable roller 32 stretches out towards the direction that is far away from hoisting frame 31 horizontally, and four guide rails 12 are vertically fixed on furnace body 1, and guide rail 12 is opposite to movable roller 32 one by one, and movable roller 32 can vertically roll along the length direction of the guide rail 12 to realize the sliding connection between the hoisting frame 31 and the furnace body 1 .

The drive assembly 4 includes a hoisting cylinder 41 vertically fixed directly above the body of heater 1, the output end of the hoisting cylinder 41 is fixedly connected to the upper side of the hoisting frame 31, and the hoisting cylinder 41 can drive the hoisting frame 31 to slide up and down in the vertical direction.

The hoisting frame 31 includes two vertically arranged vertical rods 311, the two vertical rods 311 are arranged in parallel and at intervals, the furnace door 2 is located between the two vertical rods 311, and each vertical rod 311 is slidably equipped with six movable frames. 33, each furnace door 2 is set opposite to two movable frames 33, and each movable frame 33 includes two plug-in rods 331 perpendicular to the vertical rod 311, the plug-in rod 331 is slidably connected to the vertical rod 311, and the two plug-in rods A connecting rod 332 is fixed between the rods 331; the side wall of the furnace door 2 close to the movable frame 33 is provided with a waist-shaped hole 22 for inserting the plug-in rod 331 .

Four drive cylinders 34 are also fixed on the suspension frame 31, and the four drive cylinders 34 are arranged opposite to the movable frame 33 at the bottom one by one. The driving cylinder 34 drives the connecting rod 332 to slide toward the direction close to the furnace door 2, so that the inserting rod 331 is inserted into the waist-shaped hole 22;

The movable frame 33 at the top of the hoisting frame 31 is always plugged with the furnace door 2 on the top. Since the furnace door 2 at the top needs to slide all the time when the furnace door 2 at the bottom is opened, the movable frame 33 is always connected with the furnace door at the top. 2-phase plug-in, so there is no need to set the drive cylinder 34 to drive the movable frame 33 on the top.

Both side walls of each furnace door 2 are fixed with two hanging rods 21, and the projections of the two hanging rods 21 on the single side wall of the furnace door 2 do not overlap in the vertical direction, and the lengths of the two hanging rods 21 are different. The hanging rod 21 on the lower side of the furnace door 2 is longer than the hanging rod 21 on the upper side of the furnace door 2. The furnace body 1 is fixed with a hook 13 opposite to the hanging rod 21. The number of the hooks 13 is the same as that of the hanging rod 21. , and the projections of adjacent hooks 13 in the vertical direction do not overlap, ensuring that the furnace door 2 is not affected when moving up and down.

The upper surface of each hook 13 has a slope that gradually inclines upward from the side close to the furnace body 1 to the side away from the furnace body 1, so that when the furnace door 2 is hooked on the furnace body 1, the furnace door 2 relies on its own weight. Make the hanging rod 21 slide along the inclined surface on the hook 13 to realize the effect of the furnace door 2 automatically sticking to the direction of the furnace mouth 11 and enhance the sealing between the furnace body 1 and the furnace door 2 .

The cross-section of the waist-shaped hole 22 is a hole that is gradually inclined upward from the direction away from the furnace mouth 11 to the direction close to the furnace mouth 11. During the upward sliding process, the furnace door 2 relies on its own weight to give a downward force, so that the insertion rod 331 slides in the waist-shaped hole 22, and then the furnace door 2 moves outward independently, realizing the loosening of the furnace door 2 in the horizontal direction and squeeze.

Referring to Fig. 2, the side of the furnace body 1 close to the furnace door 2 is also provided with an annular sealing guide groove 14, the sealing guide groove 14 is connected with the furnace mouth 11, and a packing 141 is fixed inside the sealing guide groove 14, and the packing 141 is a starting point. For the packing that acts as a seal, when the furnace door 2 presses against the furnace mouth 11 , the furnace door 2 abuts against the packing 141 to further enhance the sealing between the furnace door 2 and the furnace body 1 .

The implementation principle of Embodiment 1 is: when the furnace door 2 is closed, the three furnace doors 2 are jointly hung on the furnace body 1 to block the furnace mouth 11; When discharging, the driving cylinder 34 drives the movable frame 33 close to the corresponding furnace door 2, so that the insertion rods 331 on both sides of the furnace door 2 are inserted into the waist-shaped hole 22, and the hoisting cylinder 41 is activated to pull the hoisting frame 31 to slide upward, so that the hanging The rod 21 is far away from the hook 13, and the furnace door 2 is driven to slide upward until the furnace mouth 11 facing the furnace door 2 is exposed, and then the charge in the furnace body 1 is quickly discharged.

Example 2

Referring to Fig. 3, the difference between this embodiment and Embodiment 1 is that two vertically arranged raceways 15 are fixed on the furnace body 1, and the two raceways 15 are parallel and respectively located on both sides of the furnace mouth 11, Both side walls of each furnace door 2 are vertically fixed with two sliding columns 23, the axes of the two sliding columns 23 are parallel, and the sliding columns 23 are slidably connected with the raceway 15, so that the furnace door 2 is slidably connected with the furnace body 1 .

The sliding assembly 3 includes a sliding frame 35 that is slidably installed on the furnace body 1. A side where the two raceways 15 are far away from each other is fixed with a slideway 16. The slideway 16 is vertically arranged. The sliding frame 35 includes two slideways installed on the The sliding seat 351 on the track 16 and the moving bar 352 fixed between the two sliding seats 351, the moving bar 352 connects two sliding seats 351 arranged at intervals, so that the two sliding seats 351 move synchronously on the slideway 16, and the sliding The seat 351 can slide vertically along the length direction of the slideway 16 .

A sliding cylinder 353 is also fixed on the two sliding seats 351, and the sliding cylinder 353 is located on the side away from the two sliding seats 351. Jack 24 is arranged, and when the output end of slide cylinder 353 is plugged with jack 24, this furnace door 2 can slide up and down together with sliding frame 35.

Referring to FIG. 4 , the drive assembly 4 includes a first driven chain 42 and a second driven chain 43 fixedly connected to two sliding seats 351 respectively, and the first driven chain 42 and the second driven chain 43 are far away from the sliding seat 351. A counterweight 44 is fixedly installed at one end, a first sprocket 45 is engaged with the first driven chain 42 , and a second sprocket 46 and a third sprocket 47 are engaged with the second driven chain 43 .

The upper ends of the two raceways 15 are respectively fixed with a first platform 151 and a second platform 152, the first platform 151 is arranged opposite to the first sprocket 45 and the third sprocket 47, and the second platform 152 is opposite to the second sprocket 46 Set, the first sprocket wheel 45 and the third sprocket wheel 47 are rotatably installed on the first platform 151, the second sprocket wheel 46 is rotatably installed on the second platform 152, and the fourth sprocket wheel 48 is also rotatably installed on the first platform 151 , the first sprocket 45, the third sprocket 47, and the fourth sprocket 48 are coaxially arranged and the three rotate simultaneously.

The upper side of body of furnace 1 is fixed with driving motor 49, and the output end of driving motor 49 is fixed with driving sprocket 491, and driving chain 492 is meshed with driving chain 491, and one end of driving chain 492 meshes with driving sprocket 491, and the other end Mesh with the fourth sprocket 48, when the drive motor 49 drives the fourth sprocket 48 to rotate, the first sprocket 45 and the third sprocket 47 rotate simultaneously, while the second sprocket 46 is driven by the transmission of the second driven chain 43 Rotating under action, the counterweight 44 plays a tensioning role on the first driven chain 42 and the second driven chain 43 , thereby realizing the effect that the sliding seat 351 slides up and down in the slideway 16 .

With reference to Fig. 3, the sidewall of body of furnace 1 is also fixed with the spacer cylinder 441 that the counterweight 44 is limited, and the counterweight 44 vertically slides in the spacer cylinder 441, and better makes the counterweight 44 pair The first driven chain 42 and the second driven chain 43 play a tensioning role.

In order to further enhance the sealing between the furnace doors 2, a sealing structure 5 is provided between adjacent furnace doors 2. The sealing structure 5 includes a sealing block 51 and a sealing groove 52. The sealing block 51 is fixed on the bottom wall of the furnace door 2 to seal The groove 52 is opened on the top wall of the furnace door 2, and the number of the sealing blocks 51 and the number of the sealing grooves 52 are the same as three, the sealing blocks 51 and the sealing grooves 52 are arranged at intervals along the length direction of the furnace door 2, and the sealing blocks 51 and The sealing groove 52 is as long as the longitudinal direction of the furnace door 2 , and the sealing block 51 is fitted into the sealing groove 52 to further enhance the sealing performance between the furnace doors 2 .

The implementation principle of embodiment 2 is:

When the furnace door 2 is closed, the three furnace doors 2 are stacked layer by layer from bottom to top, and the furnace door 2 at the bottom bears the weight of the two furnace doors 2 above, which enhances the sealing between the furnace doors 2, and when it needs to be opened When the furnace door 2 is discharging, the sliding frame 35 slides to the corresponding furnace door 2, the output end of the sliding motor is inserted into the socket 24, and under the action of the driving component 4, the sliding seat 351 is driven to slide upwards, and simultaneously drives the furnace door 2 Slide up to achieve fast discharge.

Example 3

Referring to Figures 5 and 6, the difference between this embodiment and Embodiment 2 is that the sealing structure 5 also includes a pressing rack 53 and pressing gears 54 engaged on both sides of the pressing rack 53, and the inside of the furnace door 2 There is also a pressing groove 25, which is connected through the sealing groove 52, and the pressing groove 25 is vertically set in the furnace body 1, and the lower end of the pressing groove 25 is provided with a vertically arranged connecting groove 26, which is pressed against The width of the slot 25 is greater than that of the connecting slot 26 , and the lower end of the connecting slot 26 is connected to the insertion hole 24 through.

The pressing rack 53 and the pressing gear 54 are all located in the pressing groove 25, and the pressing rack 53 is vertically arranged. The lower end of the bar 53 is fixed with a first spring 55 , and the lower end of the first spring 55 is fixed with a support rod 56 , both the first spring 55 and the support rod 56 are located in the connecting groove 26 .

Referring to Fig. 7, the shaft center of each pressing gear 54 is equipped with a mounting seat 543, and the pressing gear 54 is rotatably mounted on the mounting seat 543, and the mounting seat 543 is slidably installed in the pressing groove 25. A pressing spring 544 is arranged between the tight gears 54 , and the two ends of the pressing spring 544 are respectively fixedly connected with two mounts 543 , so that the pressing gear 54 is pressed against the pressing rack 53 .

The two parallel side walls of the pressing gear 54 are fixed with pressing rods 541, and the ends of the pressing rods 541 away from the pressing gears 54 are bent towards the direction of approaching each other, and the ends of the pressing rods 541 away from the pressing gears 54 A flat plate 542 is fixed, and slots 511 are provided on the two parallel side walls of the sealing block 51. The flat plate 542 can be embedded in the slot 511. When the sealing block 51 is fitted with the sealing groove 52, the sealing block 51 will Push down against the rack 53, the first spring 55 is compressed, and at the same time, the pinion gear 54 meshed with the pinion rack 53 is rotated, so that the pinion rods 541 on the two pinion gears 54 move toward each other. direction rotation, and finally the flat plate 542 is embedded in the slot 511, further improving the connection stability between the furnace doors 2.

Referring to Fig. 5, a translation bar 57 is slidably installed in the jack 24, and one end of the translation bar 57 can abut against the output end of the sliding cylinder 353, and the other end of the translation bar 57 is fixed with a second spring 58, and the other end of the second spring 58 One end is fixedly connected with the bottom wall of the socket 24 , when the output end of the sliding cylinder 353 is inserted into the socket 24 , the translation rod 57 slides horizontally, and the second spring 58 is compressed under force.

A through hole 571 is provided on the translation rod 57. When the translation rod 57 slides towards the direction close to the connecting groove 26, the through hole 571 is aligned with the translation rod 57, so that the support rod 56 is inserted into the through hole 571, and the lower end of the support rod 56 There is a slope that gradually inclines upward from the direction close to the second spring 58 to the direction away from the second spring 58. When the second spring 58 is reset, the translation rod 57 slides horizontally and gives the support rod 56 an upward force, which is beneficial to press against the rack 53 reset.

Referring to Fig. 5 and Fig. 8, there is also a vertical separation hole 27 in the furnace door 2, the upper end of the separation hole 27 is connected with the through hole 571, and the lower end of the separation hole 27 is connected with the sealing groove 52 on the furnace door 2 below. Interconnected with each other, the separation rod 6 is slidably installed in the separation hole 27, and the upper end of the separation rod 6 has a slope that is inclined downward from the direction close to the through hole 571 to the direction away from the through hole 571. When the second spring 58 was in a normal state, the separation hole 27 is opposite to through hole 571, and the upper end of dividing bar 6 is inserted in the through hole 571, and the lower end of dividing bar 6 is fixed with dividing piece 61, and the bottom surface of dividing piece 61 has the inclined-plane that approaches each other gradually from top to bottom; When 57 slides horizontally, the spacer bar 6 slides vertically downward, and the spacer block 61 is finally inserted between the two mounting seats 543, so that the tension spring 544 between the two mounting seats 543 is in a stretched state, and the two The mounting base 543 drives the two pressing gears 54 away from the pressing rack 53 , and then the pressing rod 541 and the slot 511 are separated from each other, which facilitates the fast separation between the furnace doors 2 .

The sidewall of separating rod 6 is fixed with limiting block 62, also offers limiting groove 28 in the furnace door 2, and limiting groove 28 is vertically offered, and limiting groove 28 communicates with separating hole 27, and limiting block 62 and spacing The groove 28 is slidingly connected, and the third spring 63 is fixed between the limiting block 62 and the limiting groove 28. The third spring 63 is vertically fixed in the limiting groove 28, and the limiting spring can realize the automatic reset and retraction of the separating rod 6. inside the separation hole 27.

The implementation principle of Embodiment 3 is: when the three furnace doors 2 are superimposed to close the furnace mouth 11, the sealing block 51 fits into the sealing groove 52 and slides downward against the rack 53, so that the flat plate on the rod 541 542 is pressed against the slot 511 to further enhance the sealing between the furnace doors 2; when the furnace door 2 needs to be opened, the output end of the sliding cylinder 353 is inserted into the socket 24, and the driving assembly 4 drives the sliding assembly 3 to drive the furnace door 2 slide upwards, at this time, the output end of the sliding cylinder 353 is inserted to make the translation rod 57 slide horizontally, so as to achieve the sealing effect of the layered furnace door 2 and the furnace door 2 on the upper side, which facilitates the rapid opening and closing of the furnace door 2 At the same time, drive the separation rod 6 to slide vertically downwards and insert it between the pressing gears 54 in the furnace door 2 below to realize the effect that the flat plate 542 is far away from the groove 511, so that the layered furnace door 2 and the furnace door of the lower floor can be quickly 2 for rapid separation.

All of the above are preferred embodiments of the application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made according to the structure, shape, and principle of the application should be covered by the protection scope of the application. Inside.

Claims (10)

1. A furnace door of a multi-layer tempering furnace, comprising a furnace body (1) and a plurality of furnace doors (2) installed on the furnace body (1), the furnace body (1) has a furnace mouth (11 ), the furnace door (2) is arranged opposite to the furnace mouth (11), and it is characterized in that: a plurality of the furnace doors (2) are vertically arranged from top to bottom, and the furnace door (2) and the furnace body (1) Sliding connection, the projections of multiple furnace doors (2) in the vertical direction coincide, and there is a For the opening and closing mechanism with the furnace mouth (11) opened, the opening and closing mechanism includes a sliding assembly (3) that drives any furnace door (2) to open and a driving assembly (4) that drives the sliding assembly (3) to slide. 2. The furnace door of a multi-layer tempering furnace according to claim 1, characterized in that: the two parallel side walls of the furnace door (2) are fixed with hanging rods (21), and the furnace body ( 1) A hook (13) opposite to the hanging rod (21) is fixed on it, and when the hanging rod (21) is connected to the hook (13), the furnace door (2) will block the furnace mouth (11) Keep the furnace mouth (11) in a closed state; when the hanging rod (21) is far away from the hook (13), the furnace door (2) facing the furnace mouth (11) is exposed so that the furnace mouth (11) is in an open state ; The driving assembly (4) includes a hoisting cylinder (41) fixed directly above the furnace door (2), the sliding assembly (3) includes a hoisting frame (31) located outside multiple furnace doors (2), the The output end of the hoisting cylinder (41) is fixedly connected to the top of the hoisting frame (31). A movable frame (33) is installed on the hoisting frame (31). The movable frame (33) includes a The side wall is close to or away from the insertion rod (331), the side wall of the furnace door (2) is provided with a waist-shaped hole (22), and the insertion rod (331) is set opposite to the waist-shaped hole (22), And the insertion rod (331) can be inserted into the waist-shaped hole (22). 3. The furnace door of a multi-layer tempering furnace according to claim 2, characterized in that: the hooks (13) each have a side that is close to the furnace body (1) and away from the furnace body (1) One side gradually slopes upward, and one side of each furnace door (2) is hooked by at least two hooks (13), and the projections of the two hooks (13) on the vertical plane do not coincide. 4. The furnace door of a multi-layer tempering furnace according to claim 2, characterized in that: the cross-section of the waist-shaped hole (22) gradually increases from the direction away from the furnace mouth (11) to the direction close to the furnace mouth (11). Tilt up setting. 5. The furnace door of a multi-layer tempering furnace according to claim 1, characterized in that: a sealing guide groove (14) is opened on the side of the furnace body (1) close to the furnace door (2), and the A packing (141) is fixed inside the sealing guide groove (14), and the furnace door (2) is tightly pressed against the packing (141). 6. The furnace door of a multi-layer tempering furnace according to claim 1, characterized in that: raceways (15) are fixed on both sides of the furnace mouth (11), and the raceways (15) are vertically Installed on the furnace body (1), a plurality of the furnace doors (2) are fixed with a sliding column (23) on one side close to the raceway (15), and the sliding column (23) extends into the raceway (15) and Slidingly connected with the raceway (15); The sliding assembly (3) includes a sliding frame (35), and the sliding frame (35) includes at least two sliding seats (351), and the sides of the two raceways (15) away from each other are fixed with sliding rails (16), the sliding seat (351) is opposite to the sliding track (16) one by one, and the sliding seat (351) is slidingly connected to the sliding track (16), and the two sliding seats (351) are fixed A moving rod (352) is connected, a sliding cylinder (353) is fixed on the sliding seat (351), and a socket (24) is provided on the side wall of the furnace door (2) close to the raceway (15), The output end of the sliding cylinder (353) can be plugged into the socket (24). 7. The furnace door of a multi-layer tempering furnace according to claim 6, characterized in that: a sealing structure (5) is provided between the multiple furnace doors (2), and the sealing structure (5) includes The sealing block (51) fixed on the lower side of the furnace door (2) and the sealing groove (52) opened on the upper side of the furnace door (2), the sealing block (51), the sealing groove (52) and the furnace door (2) ) have the same length, and the sealing block (51) fits into the sealing groove (52). 8. The furnace door of a multi-layer tempering furnace according to claim 7, characterized in that: the sealing structure (5) also includes a pressing rack (53) installed in the furnace door (2), so The upper end of the furnace door (2) is provided with an abutting groove (25) connected with the sealing groove (52), and the end of the abutting groove (25) away from the sealing groove (52) is connected through the socket (24), The upper end of the pressing rack (53) can protrude from the pressing groove (25), and both sides of the pressing rack (53) are engaged with pressing gears (54), and the pressing gear (54) Rotationally installed in the pressing groove (25), the side wall of the pressing gear (54) is fixed with a pressing rod (541), and the ends of the pressing rod (541) away from the pressing gear (54) face each other The sealing block (51) is bent in the approaching direction, and the sealing block (51) is provided with a slot (511) for the pressing rod (541) to be pressed against, and the pressing rod (541) abuts against the slot (511). 9. The furnace door of a multi-layer tempering furnace according to claim 8, characterized in that: a first spring (55) is fixed at the end of the pressing rack (53) away from the pressing rod (541), A support rod (56) is fixed at the end of the first spring (55) away from the abutting rack (53), and the support rod (56) can extend into the socket (24); A translation rod (57) is slidably installed in the jack (24), a second spring (58) is fixed between the translation rod (57) and the bottom wall of the jack (24), and the translation rod (57 ) is provided with a through hole (571), and when the translation rod (57) slides toward the direction close to the support rod (56), the support rod (56) is opposite to the through hole (571). 10. The furnace door of a multi-layer tempering furnace according to claim 9, characterized in that: a partition hole (27) connected to the through hole (571) is opened in the furnace door (2), so that The separation hole (27) is opposite to and connected with the pressing groove (25) on the adjacent furnace door (2), and the separation hole (27) is installed inside the separation hole (27) to slide up and down. The separation rod (6), the upper end of the separation rod (6) has a slope inclined downward from the direction close to the through hole (571) to the direction away from the through hole (571), and the lower end of the separation rod (6) is fixed with A partition block (61), the partition block (61) can be inserted into the furnace door (2) located below, and both ends of the partition block (61) abut against the pressing gear (54).