Sintering kiln and using method thereof

Abstract

The invention discloses a sintering kiln and a using method thereof, and relates to the technical field of sintering kilns. Comprising a kiln body, a kiln inlet and a kiln outlet are formed in the left side wall and the right side wall of the kiln body, a U-shaped plate is arranged between the kiln inlet and the kiln outlet, a first conveying belt, a second conveying belt and a third conveying belt are arranged in the U-shaped plate, a pair of fixing plates is fixedly arranged on the left side of the U-shaped plate, a fixing shaft is arranged between the pair of fixing plates, and a lifting plate is arranged under the fixing shaft; a spacing baffle is fixedly arranged on the bottom surface of the lifting plate; a rectangular frame is arranged between the spacing baffle and the kiln body, and a pair of U-shaped translation plates is arranged below the rectangular frame. Sintered workpieces can be conveyed more stably, the workload of manual operation and potential safety hazards can be reduced, and the conveying efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sintering kilns, and in particular to a sintering kiln and a use method thereof. Background Art

[0002] Sintering kiln is one of the core equipment in sintering process, and is mainly used in ceramics, steel, metallurgy and new materials. Sintering kiln promotes chemical reaction between solid particles in raw materials by providing necessary high temperature environment, so that they bond together and the grains grow gradually, thus reducing voids and grain boundaries in the material. This process shrinks the total volume of the material and increases the density, eventually forming a dense multicrystalline sintered workpiece with the required microstructure.

[0003] At present, before using the sintering kiln, the workpieces to be sintered need to be transported into the sintering kiln by manual feeding. The workpieces to be sintered are mostly placed on steel rollers for transportation. However, since the surface of the steel rollers is relatively smooth, the workpieces to be sintered are prone to misalignment during the translation process, and workers need to manually adjust the position, resulting in a large workload of manual work and certain safety hazards. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and propose a sintering kiln and a method of using the same. The present invention adopts the following technical solutions: The present invention provides a sintering kiln, comprising a kiln body, wherein left and right side walls of the kiln body are respectively provided with a furnace inlet and a furnace outlet, a U-shaped plate is provided between the furnace inlet and the furnace outlet and runs through the kiln body horizontally, a first conveyor belt, a second conveyor belt, and a third conveyor belt connected by synchronous transmission are sequentially provided in the U-shaped plate from left to right, a plurality of evenly distributed sintering workpieces are provided on the first conveyor belt, the second conveyor belt, and the third conveyor belt, and the second conveyor belt is located in the kiln body; A pair of fixed plates symmetrically distributed front and back are fixedly arranged on the left side of the U-shaped plate, a fixed shaft rotatably inserted between the pair of fixed plates and penetrating front and back, a lifting plate slidably connected up and down is arranged directly below the fixed shaft, and a spacer baffle is fixedly arranged on the bottom surface of the lifting plate; A rectangular frame is provided between the spacer baffle and the kiln body, and L-shaped connecting blocks are fixedly provided at the four corners of the bottom surface of the rectangular frame. A rectangular ring is fixedly provided on the bottom surface of each L-shaped connecting block, and each rectangular ring is fixedly connected to the U-shaped plate; A pair of U-shaped translation plates symmetrically distributed front and back are provided below the rectangular frame, a rectangular slide plate sliding through each rectangular ring is inserted, and the inner end of each rectangular slide plate is fixedly connected to the U-shaped translation plate on the corresponding side.

[0005] Preferably, four first rollers are sequentially inserted and rotatably arranged on the left side of the U-shaped plate, each of the first rollers is sleeved with a concentrically fixed first roller, and the first conveyor belt is sleeved on the four first rollers and synchronously driven and connected; A pair of second rollers are rotatably inserted in the middle of the U-shaped plate, the front end of each second roller passes through the kiln body, each second roller is sleeved with a concentrically fixed second roller, and the second conveyor belt is sleeved on the pair of second rollers and synchronously driven; A pair of third rollers are rotatably inserted in the right side of the U-shaped plate, each of the third rollers is sleeved with a concentrically fixed third roller, and the third conveyor belt is sleeved on the pair of third rollers and synchronously transmitted and connected.

[0006] Preferably, a servo motor is fixedly arranged on the top of the back side of the rear fixed plate, and the motor shaft end of the servo motor is fixedly connected to the rear end of the fixed shaft; An intermittent shaft and a driven shaft are rotatably inserted in sequence on the left side of the front side of the U-shaped plate, a concentrically fixed driven gear is sleeved on the middle part of the driven shaft, and the driven shaft is connected to the intermittent shaft through an intermittent mechanism.

[0007] Preferably, the front end of the first roller shaft located on the far left and the front end of the intermittent shaft are both sleeved with concentrically fixed third sprockets, and the pair of third sprockets are synchronously driven and connected by an intermittent chain belt; The front end of the first roller shaft located on the far right and the front end of the second roller shaft located on the left are both sleeved with concentrically fixed first sprockets, and the pair of first sprockets are synchronously driven and connected by a first linkage chain belt; The front end of the second roller shaft located on the right side and the front end of the third roller shaft located on the left side are both sleeved with concentrically fixed second sprockets, and the pair of second sprockets are synchronously driven and connected through a second linkage chain belt.

[0008] Preferably, the intermittent mechanism comprises a notch disk and a limit disk, the front end of the driven shaft is sleeved with a concentrically fixed notch disk, a limit pin is fixed on the front side of the driven gear, and the limit pin is located in the notch of the notch disk; The middle part of the intermittent shaft is sleeved with a concentrically fixed limit plate, the limit plate is provided with a plurality of arc-shaped notches, a plurality of U-shaped notches are provided between the arc-shaped notches, the limit pins are alternately fitted in the U-shaped notches, and the notched plates are alternately fitted in the arc-shaped notches.

[0009] Preferably, a fixed ear seat is fixedly provided at the bottom of the inner side surface of each of the fixed plates, a pair of fixed sliding rods are fixedly provided at the front and rear ends of the lifting plate, the bottom end of each of the fixed sliding rods slides through the fixed ear seat on the corresponding side, and the upper half of each fixed sliding rod is sleeved with a tension spring, a pair of eccentric wheels are fixedly provided at the front and rear sides of the fixed shaft, and the bottom edges of the pair of eccentric wheels respectively abut against the front and rear sides of the top surface of the lifting plate.

[0010] Preferably, the front end portion of the fixed shaft is sleeved with a concentrically fixed driving gear, and a linkage shaft is rotatably inserted in the middle of the front face of the fixed plate located in the front, and the front end portion of the linkage shaft is sleeved with a concentrically fixed linkage gear, the driving gear is meshingly connected to the linkage gear, and the linkage gear is meshingly connected to the driven gear.

[0011] Preferably, a pair of symmetrically distributed L-shaped brackets are provided on the front and rear sides of the rectangular frame, the bottom end of each L-shaped bracket is fixedly connected to the U-shaped plate, a reduction motor is fixedly provided on the front top of the L-shaped bracket located in the front, a drive shaft is fixedly provided on the motor shaft end of the reduction motor, the drive shaft is inserted through the pair of L-shaped brackets, and a worm is fixedly provided on the front and rear ends of the drive shaft; A pair of positioning shafts are rotatably inserted on the L-shaped bracket, a notched worm gear is fixedly provided at the top end of each positioning shaft, and the worm is meshingly connected with a pair of adjacent notched worm gears.

[0012] Preferably, a positioning swing arm is fixedly arranged at the notch portion of the notch worm wheel, the notch portion of the notch worm wheel is connected to one end of the positioning swing arm, an elliptical pin hole is provided at the other end of the positioning swing arm, a pair of symmetrically distributed and movably hinged first connecting rods are arranged on both sides of the top surface of the U-shaped translation plate, and one end of the first connecting rod is movably hinged to the top surface of the U-shaped translation plate; A positioning ear seat is fixedly provided on the inner side wall of each of the L-shaped connecting blocks, and a second connecting rod with a movably hinged connection is provided on the outer end of each of the positioning ear seats, one end of the second connecting rod is movably hinged to the outer end of the positioning ear seat, and the other end of the first connecting rod and the other end of the corresponding second connecting rod are provided with a coaxially movably hinged extended pin shaft, and the top end of the extended pin shaft is slidably inserted in the corresponding elliptical pin hole.

[0013] The present invention also provides a method for using a sintering kiln, using the above sintering kiln, comprising the following steps: Step 1: Start the servo motor. The motor shaft of the servo motor drives the fixed shaft, a pair of eccentric wheels and the driving gear to rotate synchronously. Under the tension of a pair of tension springs, the lifting plate, the spacing baffle and a pair of fixed slide bars are driven to slide upward along the fixed ear seat. Under the action of the pair of eccentric wheels and the lifting plate, the lifting plate and the spacing baffle are driven to rise and fall in a reciprocating state. Step 2: The driving gear meshes to drive the linkage gear and the linkage shaft to rotate in the opposite direction, and the linkage gear meshes again to drive the driven gear, the driven shaft, and the notched disk to rotate in the forward direction. Under the limiting action of the notched disk, the limiting pin shaft, and the limiting disk, the limiting disk and the intermittent shaft are driven to rotate intermittently; Step 3: When the intermittent shaft rotates intermittently, the first roller, the first roller and the first conveyor belt are driven to rotate intermittently under the meshing action of the intermittent chain belt, the second roller, the second roller and the second conveyor belt are driven to rotate intermittently under the meshing action of the first linkage chain belt, and the third roller, the third roller and the third conveyor belt are driven to rotate intermittently under the meshing action of the second linkage chain belt; Step 4: Place a plurality of sintered workpieces on the left side of the top surface of the first conveyor belt in sequence. The first conveyor belt drives the plurality of sintered workpieces to be conveyed to the right. Under the reciprocating lifting action of the spacing baffle, the plurality of sintered workpieces are driven to be distributed on the first conveyor belt at equal intervals. With the conveying action of the first conveyor belt, the sintered workpieces are driven to be conveyed between a pair of U-shaped translation plates. Step 5, start the reduction motor, the motor shaft of the reduction motor drives the drive shaft and a pair of worms to rotate synchronously, the worms mesh and drive a pair of notched worm wheels to rotate in the opposite direction, so that a pair of positioning swing arms are hinged and unfolded in a V-shape; Step 6: Under the limiting action of the extended pin shaft and the elliptical pin hole, the first connecting rod and the second connecting rod are driven to be hinged and unfolded in a V-shape, and the rectangular slide plate is simultaneously driven to slide inward along the rectangular ring, and a pair of U-shaped translation plates are driven to translate relatively against the front and rear sides of the sintered workpiece, so that the sintered workpiece is centered in the middle of the first conveyor belt; Then the motor shaft of the reduction motor is controlled to rotate in the opposite direction to adjust the center of the subsequent sintering workpiece; Step seven, the first conveyor belt conveys the sintered workpiece through the furnace inlet to the second conveyor belt, so that the sintered workpiece is sintered in the kiln body, and then the second conveyor belt conveys the sintered workpiece through the furnace outlet to the third conveyor belt, and the sintered workpiece is conveyed to the subsequent operation location along the third conveyor belt.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, under the cooperation of the intermittent mechanism, the first conveyor belt, the second conveyor belt and the third conveyor belt can be driven to rotate synchronously and intermittently, and a plurality of sintered workpieces can be driven to be evenly spaced on the first conveyor belt through the intermittent baffle; such an arrangement can make the conveying process of the sintered workpieces more stable, reduce the transportation resistance caused by the uneven distribution of the sintered workpieces, thereby improving the conveying efficiency, reducing the deformation and wear of each conveyor belt, and thus extending the service life of each conveyor belt; 2. In the present invention, a pair of U-shaped translation plates are relatively translated to drive the sintered workpiece to be centered on the first conveyor belt, which not only facilitates the sintered workpiece to enter the kiln body for sintering, but also the U-shaped translation plate and the reduction motor are used to center the sintered workpiece in the middle of the conveyor belt, which can reduce manual workload and safety hazards, and can also effectively enhance the stability of the conveyor belt, reduce the shaking of the sintered workpiece during transportation, ensure the stability of transportation, and thus improve the transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 It is an exploded schematic diagram of the overall structure of the present invention; Figure 4 It is an exploded schematic diagram of the U-shaped plate and the first conveyor belt, the second conveyor belt, and the third conveyor belt in the present invention; Figure 5 It is a schematic diagram of the distribution of a pair of fixed plates in the present invention; Figure 6 It is an exploded schematic diagram of a pair of fixing plates in the present invention; Figure 7 It is a schematic diagram of the distribution of the rectangular frame and a pair of U-shaped translation plates in the present invention; Figure 8 It is an exploded schematic diagram of a rectangular frame and a pair of U-shaped translation plates in the present invention; The serial numbers in the figure are: 1, U-shaped plate; 11, first roller; 12, first conveyor belt; 13, second roller; 14, second conveyor belt; 15, third roller; 16, third conveyor belt; 17, first linkage chain; 18, second linkage chain; 2, fixed plate; 21, servo motor; 22, fixed shaft; 23, eccentric wheel; 24, lifting plate; 25, fixed slide bar; 26, spacer baffle; 27, fixed ear seat; 28, tension spring; 3, driving gear; 31, linkage gear; 32, driven shaft; 3 3. Driven gear; 34. Notched disk; 35. Limit pin; 36. Intermittent shaft; 37. Limit disk; 38. Intermittent chain; 4. Rectangular ring; 41. L-shaped connecting block; 42. Rectangular frame; 43. U-shaped translation plate; 44. Rectangular slide plate; 45. First connecting rod; 46. Second connecting rod; 47. Extended pin; 5. L-shaped bracket; 51. Reducer motor; 52. Drive shaft; 53. Worm; 54. Positioning shaft; 55. Notched worm wheel; 56. Positioning swing arm; 6. Kiln body; 61. Sintering workpiece. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] Embodiment 1: This embodiment provides a sintering kiln, see Figure 1-8 , including a kiln body 6, the left and right side walls of the kiln body 6 are respectively provided with an inlet and an outlet, a U-shaped plate 1 is provided between the inlet and the outlet and runs through the kiln body 6 horizontally, a first conveyor belt 12, a second conveyor belt 14, and a third conveyor belt 16 connected by synchronous transmission are provided in sequence from left to right in the U-shaped plate 1, a number of evenly distributed sintered workpieces 61 are provided on the first conveyor belt 12, the second conveyor belt 14, and the third conveyor belt 16, and the second conveyor belt 14 is located in the kiln body 6, and each conveyor belt adopts a high-temperature resistant chain plate conveyor belt, a pair of fixed plates 2 symmetrically distributed front and back are fixedly provided on the left side of the U-shaped plate 1, a fixed shaft 22 running through the pair of fixed plates 2 is rotatably inserted, a lifting plate 24 connected to slide up and down is provided directly below the fixed shaft 22, and a spacing baffle 26 is fixedly provided on the bottom surface of the lifting plate 24; A rectangular frame 42 is provided between the spacer baffle 26 and the kiln body 6. L-shaped connecting blocks 41 are fixedly provided at the four corners of the bottom surface of the rectangular frame 42. A rectangular ring 4 is fixedly provided on the bottom surface of each L-shaped connecting block 41. Each rectangular ring 4 is fixedly connected to the U-shaped plate 1. A pair of U-shaped translation plates 43 symmetrically distributed front and back are provided below the rectangular frame 42 . A rectangular slide plate 44 is inserted into each rectangular ring 4 and slides through it. The inner end of each rectangular slide plate 44 is fixedly connected to the U-shaped translation plate 43 on the corresponding side.

[0018] It should be noted that: in this embodiment, four first rollers 11 are rotatably inserted in the left side of the U-shaped plate 1, each of which is sleeved with a concentrically fixed first roller, and the first conveyor belt 12 is sleeved on the four first rollers and synchronously driven and connected; the first conveyor belt 12 conveys the sintered workpiece 61 through the furnace inlet to the second conveyor belt 14, so that the sintered workpiece 61 is sintered in the kiln body 6; A pair of second rollers 13 are rotatably inserted in the middle of the U-shaped plate 1, and the front end of each second roller 13 penetrates the kiln body 6. A concentrically fixed second roller is sleeved on each second roller 13, and a second conveyor belt 14 is sleeved on the pair of second rollers and synchronously driven and connected; the second conveyor belt 14 conveys the sintered workpiece 61 to the third conveyor belt 16 through the furnace outlet; A pair of third rollers 15 are rotatably inserted in the right side of the U-shaped plate 1, each of which is sleeved with a concentrically fixed third roller, and a third conveyor belt 16 is sleeved on the pair of third rollers and synchronously driven and connected; the sintered workpiece 61 is transported to the subsequent operation site along the third conveyor belt 16; The front end of the first roller shaft 11 located on the leftmost side and the front end of the intermittent shaft 36 are both sleeved with a concentrically fixed third sprocket, and the pair of third sprockets are synchronously connected through an intermittent chain belt 38; when the intermittent shaft 36 rotates intermittently, the first roller shaft 11, the first roller and the first conveyor belt 12 are driven to rotate intermittently under the meshing action of the intermittent chain belt 38; The front end of the first roller 11 on the far right and the front end of the second roller 13 on the left are both sleeved with a concentrically fixed first sprocket, and the pair of first sprockets are synchronously connected through a first linkage chain 17; under the meshing action of the first linkage chain 17, the second roller 13, the second roller and the second conveyor belt 14 can be driven to rotate intermittently; The front end of the second roller 13 on the right side and the front end of the third roller 15 on the left side are both sleeved with concentrically fixed second sprockets, and a pair of second sprockets are synchronously connected through a second linkage chain 18; under the meshing action of the second linkage chain 18, the third roller 15, the third roller and the third conveyor belt 16 can be driven to rotate intermittently.

[0019] Embodiment 2: Based on Embodiment 1, this embodiment also includes the following contents: like Figure 5 and Figure 6 As shown, a servo motor 21 is fixedly arranged on the top of the back side of the fixed plate 2 at the rear, and the motor shaft end of the servo motor 21 is fixedly connected to the rear end of the fixed shaft 22; The left side of the front of the U-shaped plate 1 is rotatably inserted with an intermittent shaft 36 and a driven shaft 32, and the middle of the driven shaft 32 is sleeved with a concentrically fixed driven gear 33, and the driven shaft 32 is connected to the intermittent shaft 36 through an intermittent mechanism; A fixed ear seat 27 is fixed to the bottom of the inner side of each fixed plate 2, and a pair of fixed slide bars 25 are fixed to the front and rear ends of the lifting plate 24. The bottom end of each fixed slide bar 25 slides through the fixed ear seat 27 on the corresponding side, and the upper half of each fixed slide bar 25 is sleeved with a tension spring 28. A pair of eccentric wheels 23 are fixed to the front and rear sides of the fixed shaft 22, and the bottom edges of the pair of eccentric wheels 23 are respectively against the front and rear sides of the top surface of the lifting plate 24; The motor shaft of the servo motor 21 drives the fixed shaft 22, a pair of eccentric wheels 23 and the driving gear 3 to rotate synchronously; under the tension of a pair of tension springs 28, the lifting plate 24, the spacing baffle 26 and a pair of fixed slide bars 25 are driven to slide upward along the fixed ear seat 27; under the action of the pair of eccentric wheels 23 and the lifting plate 24, the lifting plate 24 and the spacing baffle 26 are driven to rise and fall in a reciprocating state.

[0020] Embodiment 3: Based on Embodiment 2, this embodiment also includes the following contents: like Figure 5 and Figure 6 As shown, the intermittent mechanism includes a notch disc 34 and a limit disc 37. The front end of the driven shaft 32 is sleeved with a concentrically fixed notch disc 34. A limit pin 35 is fixed on the front side of the driven gear 33. The limit pin 35 is located in the notch of the notch disc 34. The middle part of the intermittent shaft 36 is sleeved with a concentrically fixed limiting plate 37, and a plurality of arc-shaped notches are provided on the limiting plate 37, and a plurality of U-shaped notches are provided between the arc-shaped notches. The limiting pins 35 are alternately engaged in the U-shaped notches, and the notched plates 34 are alternately engaged in the arc-shaped notches. Under the limiting action of the notched plate 34, the limiting pins 35 and the limiting plate 37, the limiting plate 37 and the intermittent shaft 36 are driven to intermittently rotate. The front end portion of the fixed shaft 22 is sleeved with a concentrically fixed driving gear 3, and a linkage shaft is rotatably inserted in the middle of the front face of the fixed plate 2 located in the front, and the front end portion of the linkage shaft is sleeved with a concentrically fixed linkage gear 31, the driving gear 3 is meshed and connected with the linkage gear 31, and the linkage gear 31 is meshed and connected with the driven gear 33; the driving gear 3 is meshed to drive the linkage gear 31 and the linkage shaft to rotate in the reverse direction, and the linkage gear 31 is then meshed to drive the driven gear 33, the driven shaft 32, and the notched disk 34 to rotate forward.

[0021] Embodiment 4: Based on Embodiment 3, this embodiment also includes the following contents: like Figure 7 and Figure 8As shown, a pair of symmetrically distributed L-shaped brackets 5 are provided on the front and rear sides of the rectangular frame 42, and the bottom end of each L-shaped bracket 5 is fixedly connected to the U-shaped plate 1. A reduction motor 51 is fixedly provided on the front top of the L-shaped bracket 5 located in the front, and a driving shaft 52 is fixedly provided on the motor shaft end of the reduction motor 51. The driving shaft 52 penetrates and is inserted into the pair of L-shaped brackets 5, and a worm 53 is fixedly provided on the front and rear ends of the driving shaft 52; the motor shaft of the reduction motor 51 drives the driving shaft 52 and the pair of worms 53 to rotate synchronously; A pair of positioning shafts 54 are rotatably inserted on the L-shaped bracket 5, and a notched worm gear 55 is fixedly provided at the top end of each positioning shaft 54, and the worm 53 is meshedly connected with an adjacent pair of notched worm gears 55; the meshing of the worm 53 drives the pair of notched worm gears 55 to rotate in opposite directions, so that a pair of positioning swing arms 56 are hingedly unfolded in a V-shape; A positioning swing arm 56 is fixedly provided at the notch portion of the notch worm wheel 55, and the notch portion of the notch worm wheel 55 is connected to one end of the positioning swing arm 56, and an elliptical pin hole is provided at the other end of the positioning swing arm 56. A pair of symmetrically distributed and movably hinged first connecting rods 45 are provided on both sides of the top surface of the U-shaped translation plate 43, and one end of the first connecting rod 45 is movably hinged to the top surface of the U-shaped translation plate 43; The inner side wall of each L-shaped connecting block 41 is fixed with a positioning ear seat, and the outer end of each positioning ear seat is provided with a movable hinged second connecting rod 46, one end of the second connecting rod 46 is movable hinged with the outer end of the positioning ear seat, and the other end of the first connecting rod 45 and the other end of the corresponding second connecting rod 46 are provided with a coaxial movable hinged extension pin 47, and the top end of the extension pin 47 is slidably inserted in the corresponding elliptical pin hole; Under the limiting action of the extended pin shaft 47 and the elliptical pin hole, the first connecting rod 45 and the second connecting rod 46 are driven to be hinged and unfolded in a V-shape, driving a pair of U-shaped translation plates 43 to translate relative to each other against the front and rear sides of the sintered workpiece 61, so that the sintered workpiece 61 is centered in the middle of the first conveyor belt 12.

[0022] Specifically, the working principle and operation method of the present invention are as follows: Step 1: Start the servo motor 21. The motor shaft of the servo motor 21 drives the fixed shaft 22, the pair of eccentric wheels 23 and the driving gear 3 to rotate synchronously. Under the tension of the pair of tension springs 28, the lifting plate 24, the spacing baffle 26 and the pair of fixed slide bars 25 are driven to slide upward along the fixed ear seat 27. Under the action of the pair of eccentric wheels 23 and the lifting plate 24, the lifting plate 24 and the spacing baffle 26 are driven to rise and fall in a reciprocating state. Step 2: The driving gear 3 is meshed to drive the linkage gear 31 and the linkage shaft to rotate in the opposite direction. The linkage gear 31 is then meshed to drive the driven gear 33, the driven shaft 32 and the notched plate 34 to rotate in the forward direction. Under the limiting action of the notched plate 34, the limiting pin 35 and the limiting plate 37, the limiting plate 37 and the intermittent shaft 36 are driven to rotate intermittently. Step 3: When the intermittent shaft 36 rotates intermittently, the first roller 11, the first roller and the first conveyor belt 12 are driven to rotate intermittently under the meshing action of the intermittent chain belt 38; the second roller 13, the second roller and the second conveyor belt 14 are driven to rotate intermittently under the meshing action of the first linkage chain belt 17; and the third roller 15, the third roller and the third conveyor belt 16 are driven to rotate intermittently under the meshing action of the second linkage chain belt 18; Step 4: Place a plurality of sintered workpieces 61 on the left side of the top surface of the first conveyor belt 12 in sequence. The first conveyor belt 12 drives the plurality of sintered workpieces 61 to be conveyed to the right. Under the reciprocating lifting action of the spacing baffle 26, the plurality of sintered workpieces 61 are driven to be distributed on the first conveyor belt 12 at equal intervals. With the conveying action of the first conveyor belt 12, the sintered workpieces 61 are driven to be conveyed between a pair of U-shaped translation plates 43. Step 5, start the reduction motor 51, the motor shaft of the reduction motor 51 drives the driving shaft 52 and the pair of worms 53 to rotate synchronously, the worms 53 mesh and drive the pair of notched worm wheels 55 to rotate in the opposite direction, so that the pair of positioning swing arms 56 are hinged and unfolded in a V-shape; Step 6: Under the limiting action of the extended pin shaft 47 and the elliptical pin hole, the first connecting rod 45 and the second connecting rod 46 are driven to be hinged and unfolded in a V-shape, and the rectangular slide plate 44 is simultaneously driven to slide inward along the rectangular ring 4, and the pair of U-shaped translation plates 43 are driven to translate relatively against the front and rear sides of the sintered workpiece 61, so that the sintered workpiece 61 is centered in the middle of the first conveyor belt 12; Then, the motor shaft of the reduction motor 51 is controlled to rotate in the opposite direction to adjust the subsequent sintering workpiece 61 in the center; In step seven, the first conveyor belt 12 conveys the sintered workpiece 61 to the second conveyor belt 14 through the furnace inlet, so that the sintered workpiece 61 is sintered in the kiln body 6, and then the second conveyor belt 14 conveys the sintered workpiece 61 to the third conveyor belt 16 through the furnace outlet, and the sintered workpiece 61 is transported to the subsequent operation location along the third conveyor belt 16.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sintering kiln, characterized in that: The kiln body (6) comprises a kiln entrance and a kiln exit respectively formed on the left and right side walls of the kiln body (6); a U-shaped plate (1) is provided between the kiln entrance and the kiln exit and runs through the kiln body (6) in a transverse direction; a first conveyor belt (12), a second conveyor belt (14) and a third conveyor belt (16) connected by synchronous transmission are provided in sequence from left to right in the U-shaped plate (1); a plurality of evenly distributed sintering workpieces (61) are provided on the first conveyor belt (12), the second conveyor belt (14) and the third conveyor belt (16); and the second conveyor belt (14) is located in the kiln body (6); A pair of fixed plates (2) symmetrically distributed front and back are fixedly provided on the left side of the U-shaped plate (1); a fixed shaft (22) penetrating front and back is rotatably inserted between the pair of fixed plates (2); a lifting plate (24) slidably connected up and down is provided directly below the fixed shaft (22); a spacer baffle (26) is fixedly provided on the bottom surface of the lifting plate (24); A rectangular frame (42) is provided between the spacer baffle (26) and the kiln body (6); L-shaped connecting blocks (41) are fixedly provided at four corners of the bottom surface of the rectangular frame (42); a rectangular ring (4) is fixedly provided on the bottom surface of each L-shaped connecting block (41); and each rectangular ring (4) is fixedly connected to the U-shaped plate (1); A pair of U-shaped translation plates (43) symmetrically distributed frontward and rearward are provided below the rectangular frame (42), a rectangular slide plate (44) is inserted into each rectangular ring (4) and slidably penetrates therethrough, and the inner end of each rectangular slide plate (44) is fixedly connected to the U-shaped translation plate (43) on the corresponding side.

2. A sintering kiln according to claim 1, characterized in that: Four first rollers (11) are rotatably inserted in sequence on the left side of the U-shaped plate (1), each of the first rollers (11) is sleeved with a concentrically fixed first roller, and the first conveyor belt (12) is sleeved on the four first rollers and synchronously driven; A pair of second rollers (13) are rotatably inserted in the middle of the U-shaped plate (1), the front end of each of the second rollers (13) passes through the kiln body (6), each of the second rollers (13) is sleeved with a concentrically fixed second roller, and the second conveyor belt (14) is sleeved on the pair of second rollers and synchronously driven and connected; A pair of third rollers (15) are rotatably inserted in the right side of the U-shaped plate (1), each of the third rollers (15) is sleeved with a concentrically fixed third roller, and the third conveyor belt (16) is sleeved on the pair of third rollers and is synchronously driven and connected.

3. A sintering kiln according to claim 2, characterized in that: A servo motor (21) is fixedly provided on the top of the back side of the fixed plate (2) at the rear, and the motor shaft end of the servo motor (21) is fixedly connected to the rear end of the fixed shaft (22); An intermittent shaft (36) and a driven shaft (32) are rotatably inserted in sequence on the left side of the front face of the U-shaped plate (1); a concentrically fixed driven gear (33) is sleeved on the middle of the driven shaft (32); and the driven shaft (32) is connected to the intermittent shaft (36) via an intermittent mechanism.

4. A sintering kiln according to claim 3, characterized in that: The front end of the first roller shaft (11) located on the far left and the front end of the intermittent shaft (36) are both sleeved with concentrically fixed third sprockets, and the pair of third sprockets are synchronously connected through an intermittent chain belt (38); The front end of the first roller (11) located on the far right and the front end of the second roller (13) located on the left are both sleeved with concentrically fixed first sprockets, and the pair of first sprockets are synchronously connected through a first linkage chain (17); The front end of the second roller shaft (13) located on the right side and the front end of the third roller shaft (15) located on the left side are both sleeved with concentrically fixed second sprockets, and the pair of second sprockets are synchronously connected through a second linkage chain belt (18).

5. A sintering kiln according to claim 4, characterized in that: The intermittent mechanism comprises a notched disc (34) and a limiting disc (37); the front end of the driven shaft (32) is sleeved with a concentrically fixed notched disc (34); a limiting pin (35) is fixedly provided on the front side of the driven gear (33); the limiting pin (35) is located in a notch of the notched disc (34); A concentrically fixed limiting plate (37) is sleeved on the middle of the intermittent shaft (36), a plurality of arc-shaped notches are formed on the limiting plate (37), a plurality of U-shaped notches are formed between the arc-shaped notches, the limiting pins (35) are alternately engaged in the U-shaped notches, and the notched plates (34) are alternately engaged in the arc-shaped notches.

6. A sintering kiln according to claim 5, characterized in that: A fixed ear seat (27) is fixedly provided at the bottom of the inner side surface of each fixed plate (2), a pair of fixed slide bars (25) are fixedly provided at the front and rear ends of the lifting plate (24), the bottom end of each fixed slide bar (25) slides through the fixed ear seat (27) on the corresponding side, and the upper half of each fixed slide bar (25) is sleeved with a tension spring (28), and a pair of eccentric wheels (23) are fixedly provided at the front and rear sides of the fixed shaft (22), and the bottom edges of the pair of eccentric wheels (23) are respectively against the front and rear sides of the top surface of the lifting plate (24).

7. A sintering kiln according to claim 6, characterized in that: The front end of the fixed shaft (22) is sleeved with a concentrically fixed driving gear (3), and a linkage shaft is rotatably inserted in the middle of the front face of the fixed plate (2) located in the front. The front end of the linkage shaft is sleeved with a concentrically fixed linkage gear (31), the driving gear (3) is meshingly connected to the linkage gear (31), and the linkage gear (31) is meshingly connected to the driven gear (33).

8. A sintering kiln according to claim 7, characterized in that: A pair of symmetrically distributed L-shaped brackets (5) are provided on the front and rear sides of the rectangular frame (42); the bottom end of each L-shaped bracket (5) is fixedly connected to the U-shaped plate (1); a reduction motor (51) is fixedly provided on the front top of the L-shaped bracket (5) located in the front; a drive shaft (52) is fixedly provided on the motor shaft end of the reduction motor (51); the drive shaft (52) penetrates and is inserted into the pair of L-shaped brackets (5); and a worm (53) is fixedly provided on the front and rear ends of the drive shaft (52); A pair of positioning shafts (54) are rotatably inserted on the L-shaped bracket (5), a notched worm wheel (55) is fixedly provided at the top end of each positioning shaft (54), and the worm (53) is meshingly connected with an adjacent pair of notched worm wheels (55).

9. A sintering kiln according to claim 8, characterized in that: A positioning swing arm (56) is fixedly provided at the notch portion of the notch worm wheel (55), the notch portion of the notch worm wheel (55) is connected to one end of the positioning swing arm (56), the other end of the positioning swing arm (56) is provided with an elliptical pin hole, a pair of symmetrically distributed and movably hinged first connecting rods (45) are provided on both sides of the top surface of the U-shaped translation plate (43), and one end of the first connecting rod (45) is movably hinged to the top surface of the U-shaped translation plate (43); A positioning ear seat is fixedly provided on the inner side wall of each L-shaped connecting block (41), and a second connecting rod (46) is movably hinged at the outer end of each positioning ear seat, one end of the second connecting rod (46) is movably hinged to the outer end of the positioning ear seat, and the other end of the first connecting rod (45) and the other end of the corresponding second connecting rod (46) are provided with a coaxially movably hinged extended pin shaft (47), and the top end of the extended pin shaft (47) is slidably inserted in the corresponding elliptical pin hole.

10. The method for using a sintering furnace according to claim 9, characterized in that: The following steps are involved: Step 1, starting the servo motor (21), the motor shaft of the servo motor (21) drives the fixed shaft (22), the pair of eccentric wheels (23) and the driving gear (3) to rotate synchronously, and under the tension of the pair of tension springs (28), drives the lifting plate (24), the spacing baffle (26) and the pair of fixed slide bars (25) to slide upward along the fixed ear seat (27), and under the action of the pair of eccentric wheels (23) and the lifting plate (24), drives the lifting plate (24) and the spacing baffle (26) to rise and fall in a reciprocating state; Step 2: The driving gear (3) meshes to drive the linkage gear (31) and the linkage shaft to rotate in the reverse direction, and the linkage gear (31) then meshes to drive the driven gear (33), the driven shaft (32), and the notched plate (34) to rotate in the forward direction, and under the limiting action of the notched plate (34), the limiting pin (35) and the limiting plate (37), the limiting plate (37) and the intermittent shaft (36) are driven to rotate intermittently; Step three, when the intermittent shaft (36) rotates intermittently, under the meshing action of the intermittent chain belt (38), the first roller shaft (11), the first roller and the first conveyor belt (12) are driven to rotate intermittently; under the meshing action of the first linkage chain belt (17), the second roller shaft (13), the second roller and the second conveyor belt (14) are driven to rotate intermittently; under the meshing action of the second linkage chain belt (18), the third roller shaft (15), the third roller and the third conveyor belt (16) are driven to rotate intermittently; Step 4: placing a plurality of sintered workpieces (61) in sequence on the left side of the top surface of the first conveyor belt (12); the first conveyor belt (12) drives the plurality of sintered workpieces (61) to be conveyed to the right; under the reciprocating lifting action of the spacing baffle (26), the plurality of sintered workpieces (61) are driven to be distributed on the first conveyor belt (12) at equal intervals; and along with the conveying action of the first conveyor belt (12), the sintered workpieces (61) are driven to be conveyed between a pair of U-shaped translation plates (43); Step 5, starting the reduction motor (51), the motor shaft of the reduction motor (51) drives the driving shaft (52) and the pair of worms (53) to rotate synchronously, the worms (53) mesh and drive the pair of notched worm wheels (55) to rotate in the opposite direction, so that the pair of positioning swing arms (56) are hinged and unfolded in a V-shape; Step 6: Under the limiting action of the extended pin shaft (47) and the elliptical pin hole, the first connecting rod (45) and the second connecting rod (46) are driven to be hinged and unfolded in a V-shape, and the rectangular slide plate (44) is simultaneously driven to slide inward along the rectangular ring (4), and a pair of U-shaped translation plates (43) are driven to translate relative to each other and to abut against the front and rear sides of the sintered workpiece (61), so that the sintered workpiece (61) is centered in the middle of the first conveyor belt (12); Then, the motor shaft of the reduction motor (51) is controlled to rotate in the opposite direction to adjust the center of the subsequent sintering workpiece (61); Step seven, the first conveyor belt (12) conveys the sintered workpiece (61) to the second conveyor belt (14) through the furnace inlet, so that the sintered workpiece (61) is sintered in the kiln body (6), and then the second conveyor belt (14) conveys the sintered workpiece (61) to the third conveyor belt (16) through the furnace outlet, and the sintered workpiece (61) is conveyed to the subsequent operation location along the third conveyor belt (16).

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