Production process of refractory brick

Abstract

The invention relates to the technical field of refractory brick production, in particular to a refractory brick production technology which comprises the steps that firstly, refractory brick raw materials are put into a refractory brick production device; and 2, the refractory brick raw materials in the refractory brick production device are extruded up and down through the refractory brick production device, so that the refractory brick raw materials are formed into refractory bricks. In the process that the buffering discharging mechanism moves towards the discharging conveyor along with the pushing frame, the elasticity of a buffering rubber pad can absorb impact generated by rigid thrust, the situation that the edges of refractory bricks of a complete structure are collided and broken due to the fact that the thrust is too large is avoided, and meanwhile the buffering rubber pad receives counter-acting force of the refractory bricks; when the refractory brick is pushed, a buffer baffle and two buffer sliding rods are pushed to slide in the axial direction of two first linear bearings, so that two first-stage buffer springs are compressed, reverse impact force generated by the refractory brick to a buffer rubber pad is further absorbed, and the impact damage to the refractory brick when the refractory brick is pushed and squeezed can be effectively reduced through the dual-buffer effect.

Description

Technical Field

[0001] This invention relates to the field of refractory brick production technology, specifically a refractory brick production process. Background Technology

[0002] Refractory materials are core basic materials in high-temperature industries such as metallurgy, building materials, chemicals, and power. Among them, refractory bricks are widely used in the lining construction of various industrial kilns and heating devices due to their excellent refractory properties, high-temperature structural strength, and chemical stability. Currently, the mainstream production process for refractory bricks adopts the powder pressing method. The core process is as follows: after the raw materials (refractory aggregates, powders, binders, etc.) are metered, mixed, and aged, they are filled into the mold cavity of the press by a material feeding device. They are then pressed into dense brick blanks by a hydraulic press or friction press. The brick blanks are then ejected from the mold cavity by an ejection mechanism, and finally pushed to a conveyor line or transfer platform by a pushing mechanism to enter the subsequent drying and firing processes. In automated continuous production, the ejection and pushing process after the brick blanks are pressed is a key process that determines the product qualification rate. The pushing mechanism of existing refractory brick pressing equipment generally adopts a structure of rigid push plate + linear drive (pneumatic cylinder / hydraulic cylinder / electric push rod): after the ejection mechanism completely ejects the brick blank from the mold and places it stably on the worktable, the push plate of the pushing mechanism extends rapidly in the horizontal direction under the action of the drive source, directly contacting the end face of the brick blank, and pushing the brick blank out of the press working area with rigid thrust, realizing the connection between demolding and transfer. For example, a Chinese patent with application number 202511434601.8 discloses a pressing device for producing refractory bricks. During the feeding process, the pusher plate and the brick blank are in hard contact without buffering. There is an instantaneous impact force at the moment of push-start. Since the particles inside the brick blank are only bonded by a small amount of binder, the overall flexural and impact strength is extremely low. The instantaneous impact stress is prone to generate micro-cracks inside the brick blank, or even form through cracks, and in severe cases, it will directly break. In view of this, we propose a refractory brick production process to solve the above-mentioned technical problems. Summary of the Invention

[0003] The purpose of this invention is to provide a production process for refractory bricks to solve the problem of easy breakage of brick blanks during the existing material feeding process.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a production process for refractory bricks, comprising: Step 1: Feed the refractory brick raw materials into the refractory brick production device; Step 2: The refractory brick production device is used to extrude the refractory brick raw material inside, so that the refractory brick raw material is formed into refractory bricks. The refractory brick production equipment includes: Main frame; The upper extrusion mechanism is fixedly installed on the top of the main frame body. The upper extrusion mechanism and the main frame body form an extrusion from above and below to press the refractory bricks into shape. The discharge conveyor is fixedly installed at the end of the main frame and is used to output the formed refractory bricks. The buffer feeding mechanism is fixedly installed on the main frame and is used for buffering the feeding of refractory bricks.

[0005] As a preferred embodiment of the present invention, the frame body includes a base, and at least one extrusion groove is formed on the top of the base along its width direction. A lower extrusion die is slidably arranged inside the extrusion groove. A hydraulic cylinder is fixedly arranged at the bottom of the lower extrusion die. The cylinder body of the hydraulic cylinder is fixed inside the base, and the bottom of the lower extrusion die is fixed to the top of the piston rod of the hydraulic cylinder.

[0006] As a preferred embodiment of the present invention, the upper extrusion mechanism includes a mounting frame fixedly disposed on the periphery of the main frame body, the mounting frame extending to the top of the main frame body, an upper extrusion hydraulic cylinder fixedly disposed on the top of the mounting frame, the piston rod of the upper extrusion hydraulic cylinder moving through the interior of the mounting frame, and an upper extrusion die fixedly disposed at the bottom of the piston rod of the upper extrusion hydraulic cylinder, the specifications of the upper extrusion die being adapted to the specifications of the lower extrusion die.

[0007] As a preferred embodiment of the present invention, a pushing hydraulic cylinder is fixedly installed at the top of the base away from the extrusion groove. The piston rod of the pushing hydraulic cylinder extends along the length of the base. A pushing frame is slidably installed on the top of the base. The pushing frame is a rectangular hollow structure that runs through the top and bottom. The end of the piston rod of the pushing hydraulic cylinder is fixedly connected to the side of the pushing frame.

[0008] As a preferred embodiment of the present invention, the buffer feeding mechanism includes a mounting side plate fixedly disposed on the side of the pusher frame away from the pusher hydraulic cylinder. A linear bearing is fixedly disposed at each end of the mounting side plate. A buffer slide rod is slidably disposed inside each linear bearing. A buffer baffle is fixedly disposed at the ends of the two buffer slide rods away from the pusher hydraulic cylinder. A buffer rubber pad is fixedly disposed on the side of the buffer baffle away from the mounting side plate. The buffer rubber pad itself is elastic. A primary buffer spring is sleeved around the buffer slide rod. The primary buffer spring is fixedly disposed between the mounting side plate and the buffer baffle. A secondary buffer spring is sleeved around the primary buffer spring. One end of the secondary buffer spring is fixed to the side of the mounting side plate near the buffer baffle, and a gap is provided between the other end of the secondary buffer spring and the side of the buffer baffle.

[0009] As a preferred embodiment of the present invention, a linkage crank arm is fixedly provided at the end of the buffer slide bar away from the buffer baffle. The linkage crank arm bends and extends to the top of the pusher frame, and a bolt is vertically installed inside the linkage crank arm. The bolt is located around the lower surface of the top of the linkage crank arm. A scraper slide is slidably provided inside the pusher frame along the length of the main frame.

[0010] As a preferred embodiment of the present invention, a groove is provided on the top of the scraper slide along its length direction. A mounting seat is fixedly provided on the front and back of the pusher frame at the end near the pusher hydraulic cylinder. A pin is fixedly provided on the top of each mounting seat. A lever is rotatably provided around the pin. There are two levers, which are symmetrical about the central axis of the scraper slide. A sliding pin is fixedly provided at the bottom of the two levers that are close to each other. The sliding pin is slidably disposed inside the groove.

[0011] As a preferred embodiment of the present invention, an installation shaft is fixedly provided at the bottom of the lever away from the sliding pin, and a roller is rotatably provided around the installation shaft. Two opposing limiting tracks are fixedly provided on the top of the base along its width direction. Limiting grooves are provided on the opposite surfaces of the two limiting tracks. The limiting grooves include a straight section and an inclined section. The straight section and the inclined section are smoothly connected, and the roller rolls along the straight section and the inclined section.

[0012] As a preferred embodiment of the present invention, two linear bearings are fixedly installed on one side of the pusher frame near the pusher hydraulic cylinder. Each of the two linear bearings has a guide column slidably installed inside. The scraper slide is fixedly installed at the end of the guide column. A return spring is sleeved around the guide column. A limit stop is fixedly installed at the end of the guide column away from the scraper slide. The return spring is fixedly installed between the side of the pusher hydraulic cylinder and the limit stop.

[0013] As a preferred embodiment of the present invention, a raw material storage bin is fixedly installed inside the mounting frame. The raw material storage bin is used to store refractory brick raw materials. The raw material storage bin is located on the side of the upper extrusion hydraulic cylinder. In the initial state, the raw material storage bin is located at the top of the pusher frame. An electric valve is installed at the bottom of the raw material storage bin. The electric valve is used to control the interruption of the feeding of refractory brick raw materials inside the raw material storage bin.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. As the feeding mechanism moves towards the discharge conveyor along with the pusher frame, the buffer rubber pad first contacts the formed refractory brick, generating a rigid pushing force on it. At this time, the elasticity of the buffer rubber pad absorbs the impact of the rigid pushing force, preventing the edges of the structurally intact refractory brick from being crushed due to excessive pushing force. Simultaneously, the buffer rubber pad receives the reaction force from the refractory brick, which pushes the buffer baffle and the two buffer slide rods to slide along the axial direction of the two linear bearings, causing the two primary buffer springs to be compressed, further absorbing the reverse impact force generated by the refractory brick on the buffer rubber pad. This dual buffering effect can effectively reduce the impact damage to the refractory brick when it is pushed, and also buffer the vibration of the equipment structure itself, extending the service life of the equipment.

[0015] 2. As the pusher frame moves toward the discharge conveyor, it drives the scraper slide to move as well. Simultaneously, the two levers move together through the connection of two mounting seats and two axle pins. When the two levers move, the rollers at the bottom of the two levers roll along the limit grooves pre-cut on the limit track. When the rollers roll along the straight section to the inclined section, the levers roll diagonally along the inclined section, driving the levers to rotate along the axle pins. At the same time, the levers drive the sliding pins to move toward the discharge conveyor, pushing the chute inside the pusher frame toward the discharge conveyor. This pushes the refractory brick raw material inside the pusher frame toward the discharge conveyor, ensuring that the refractory brick raw material does not accumulate at one end of the pusher frame as it moves toward the discharge conveyor. This ensures that the raw material falling into the extrusion trough is as uniform as possible, avoiding differences in the density of the refractory bricks after molding due to uneven distribution of raw material.

[0016] 3. During the movement of the scraper slide, it will come into contact with two bolts, thereby generating a thrust on the two bolts in the direction of their movement. This thrust, through two linkage crank arms, drives two buffer slide rods to slide along two linear bearings towards the discharge conveyor. This allows the buffer rubber pad to push the refractory bricks onto the discharge conveyor earlier, preventing the brick blanks from not being fully pushed into place due to insufficient single-movement stroke of the pusher frame. At the same time, shortening the stroke of the pusher frame reduces the pushing stroke of the pusher hydraulic cylinder, improving the processing cycle. After the refractory bricks are pushed above the discharge conveyor, the piston rod of the pusher hydraulic cylinder drives the pusher frame to reset. Under the action of the return spring, the two rollers will roll back along the inclined section to the straight section. At this time, the two levers rotate in opposite directions, driving the sliding pin to move back to reset, and driving the scraper slide to move back to reset, waiting for the next feeding. The buffer rubber pad also resets in the opposite direction under the elastic force of the first-stage buffer spring. All structures return to their initial state, ready for the next round of production processing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2This is a schematic diagram of the main structure of the frame in this invention; Figure 3 This is a schematic diagram of the upper extrusion mechanism in this invention; Figure 4 This is a schematic diagram of the extrusion groove in the present invention; Figure 5 This is a schematic diagram of the buffer feeding mechanism in this invention. Figure 1 ; Figure 6 In this invention Figure 5 A magnified structural diagram of part A; Figure 7 This is a schematic diagram of the buffer feeding mechanism in this invention. Figure 2 ; Figure 8 This is a schematic diagram of the unfolded structure of the lever and scraper slide in this invention.

[0018] In the diagram: 100, main frame; 101, base; 102, extrusion groove; 103, lower extrusion die; 104, pushing hydraulic cylinder; 105, pushing frame; 200, upper extrusion mechanism; 201, mounting frame; 202, upper extrusion hydraulic cylinder; 203, upper extrusion die; 204, raw material storage bin; 300, discharge conveyor; 400, buffer unloading mechanism; 401, mounting side plate; 402, linear bearing one; 403, buffer slide bar; 404, buffer baffle; 405, buffer rubber pad; 406, primary buffer. 407. Impact spring; 408. Secondary buffer spring; 409. Linkage crank arm; 4010. Bolt; 4011. Scraper slide plate; 4012. Slide groove; 4013. Mounting base; 4014. Shaft pin; 4015. Lever; 4016. Slide pin; 4017. Mounting shaft; 4018. Roller; 4019. Linear bearing II; 4020. Guide slide column; 4021. Return spring; 4022. Limit stop; 4023. Limit track; 4024. Limit roller groove; 40231. Straight section; 40232. Inclined section. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1 to 8 The technical solution provided by the present invention specifically includes the following embodiments: A process for producing refractory bricks includes: Step 1: Feed the refractory brick raw materials into the refractory brick production device; Step 2: Use the refractory brick production device to extrude the refractory brick raw material from top to bottom, so that the refractory brick raw material is formed into refractory bricks. The refractory brick production equipment includes a frame body 100, an upper extrusion mechanism 200, a discharge conveyor 300, and a buffer feeding mechanism 400. The upper extrusion mechanism 200 is fixedly installed on the top of the frame body 100. The upper extrusion mechanism 200 and the frame body 100 form an extrusion between the upper extrusion mechanism 200 and the frame body 100 to press the refractory bricks into shape. The discharge conveyor 300 is fixedly installed at the end of the frame body 100 to output the formed refractory bricks. The buffer feeding mechanism 400 is fixedly installed on the frame body 100 to buffer the feeding of refractory bricks.

[0021] For further details, please refer to [link / reference]. Figure 2 , Figure 3 , Figure 4 As shown: The frame body 100 includes a base 101. At least one extrusion groove 102 is formed on the top of the base 101 along its width direction. A lower extrusion die 103 is slidably disposed inside the extrusion groove 102. A hydraulic cylinder is fixedly disposed at the bottom of the lower extrusion die 103. The cylinder body of the hydraulic cylinder is fixed inside the base 101, and the bottom of the lower extrusion die 103 is fixed to the top of the piston rod of the hydraulic cylinder. The upper extrusion mechanism 200 includes a mounting frame 201 fixedly disposed around the periphery of the frame body 100. The mounting frame 201 extends to the top of the frame body 100. An upper extrusion hydraulic cylinder 202 is fixedly disposed at the top of the mounting frame 201. The piston rod of the upper extrusion hydraulic cylinder 202 moves through the interior of the mounting frame 201, and the upper extrusion die 203 is fixedly disposed at the bottom of the piston rod of the upper extrusion hydraulic cylinder 202. The specifications of the upper extrusion die 203 are the same as those of the lower extrusion die 102. The three specifications are compatible. A push hydraulic cylinder 104 is fixedly installed at the top of the base 101 away from the extrusion groove 102. The piston rod of the push hydraulic cylinder 104 extends along the length of the base 101. A push frame 105 is slidably installed on the top of the base 101. The push frame 105 is a rectangular hollow structure that runs vertically through the base. The end of the piston rod of the push hydraulic cylinder 104 is fixedly connected to the side of the push frame 105. A raw material storage bin 204 is fixedly installed inside the mounting frame 201. The raw material storage bin 204 is used to store refractory brick raw materials. The raw material storage bin 204 is located on the side of the upper extrusion hydraulic cylinder 202. In the initial state, the raw material storage bin 204 is located on the top of the push frame 105. An electric valve is installed at the bottom of the raw material storage bin 204. The electric valve is used to control the interruption of the feeding of refractory brick raw materials inside the raw material storage bin 204.In actual production, initially, the pusher frame 105 is positioned directly below the raw material storage silo 204 at the discharge position. At this time, the electric valve at the bottom of the raw material storage silo 204 is opened, and the pre-mixed refractory brick raw material falls from the inner cavity of the raw material storage silo 204 into the pusher frame 105. Once a certain amount of refractory brick raw material accumulates inside the pusher frame 105, the electric valve at the bottom of the raw material storage silo 204 closes again. Then, the piston rod of the pusher hydraulic cylinder 104 extends, pushing the pusher frame 105 towards the discharge conveyor 300. The measured amount of refractory brick raw material inside the pusher frame 105 will then... As the pusher frame 105 moves to directly above the extrusion groove 102, the refractory brick raw material falls into the extrusion groove 102 under the action of gravity. The lower extrusion die 103 installed inside the extrusion groove 102 supports the bottom of the refractory brick raw material, allowing it to remain inside the extrusion groove 102 awaiting extrusion. Next, the piston rod of the pusher hydraulic cylinder 104 retracts, causing the pusher frame 105 to reset. Then, the piston rod of the upper extrusion hydraulic cylinder 202 pushes the upper extrusion die 203 downward, extruding the refractory brick raw material inside the extrusion groove 102 from top to bottom, in conjunction with the bottom support. The lower extrusion die 103 extrudes the refractory brick raw material into a complete refractory brick blank. After extrusion molding, the piston rod of the upper extrusion hydraulic cylinder 202 drives the upper extrusion die 203 to reset upward. Then, the lower extrusion die 103, which supports the brick blank at the bottom, moves upward under the drive of the hydraulic cylinder, raising the bottom of the extruded refractory brick blank to be level with the upper surface of the base 101. At this time, the piston rod of the push hydraulic cylinder 104 extends again, driving the already reset push frame 105 to move again towards the discharge conveyor 300. During the movement, the buffer feeding mechanism 400 moves along with the push frame 105. The movement of the 5 components together will push the lifted refractory brick blank to move laterally, eventually pushing the refractory brick blank into the discharge conveyor 300 located at the end of the main frame 100. The discharge conveyor 300 then transports the formed refractory brick to the next processing stage, completing a complete refractory brick pressing and forming process. Then, the hydraulic cylinder piston rod supporting the lower extrusion die 103 drives the lower extrusion die 103 to reset downwards, and the refractory brick raw material located inside the pusher frame 105 falls back into the extrusion groove 102, waiting for pressing. Then, this process is repeated to realize continuous automated processing of refractory bricks.

[0022] For further details, please refer to [link / reference]. Figure 4 , Figure 5 , Figure 6 As shown: The buffer feeding mechanism 400 includes a mounting side plate 401 fixedly mounted on the side of the pusher frame 105 away from the pusher hydraulic cylinder 104. A linear bearing 402 is fixedly mounted at each end of the mounting side plate 401. A buffer slide rod 403 is slidably mounted inside each linear bearing 402. A buffer baffle 404 is fixedly mounted at the ends of the two buffer slide rods 403 away from the pusher hydraulic cylinder 104. A buffer rubber pad 405 is fixedly mounted on the side of the buffer baffle 404 away from the mounting side plate 401. The buffer rubber pad 405 is elastic. A primary buffer spring 406 is sleeved around the buffer slide rods 403. The primary buffer spring 406 is fixedly mounted between the mounting side plate 401 and the buffer baffle 404. A secondary buffer spring 407 is sleeved around the primary buffer spring 406. One end of the secondary buffer spring 407 is fixed to the side of the mounting side plate 401 near the buffer baffle 404, and a gap is provided between the other end of the secondary buffer spring 407 and the side of the buffer baffle 404. As the buffer feeding mechanism 400 moves towards the discharge conveyor 300 along with the pusher frame 105, the buffer rubber pad 405 first contacts the formed refractory brick, generating a rigid pushing force on it. At this time, the elasticity of the buffer rubber pad 405 absorbs the impact of this rigid pushing force, preventing excessive force from causing the edges of the structurally intact refractory brick to shatter. Simultaneously, the buffer rubber pad 405 receives the reaction force from the refractory brick, pushing the buffer baffle 404 and the two buffer slide rods 403 to slide axially along the two linear bearings 402. This causes the two primary buffer springs 406 to be compressed, further absorbing the reverse impact force generated by the refractory brick on the buffer rubber pad 405. This dual buffering effect effectively reduces the impact damage to the refractory brick when it is pushed. It can also buffer vibrations to the equipment's own structure and extend the equipment's service life. As the buffer baffle 404 is pushed closer to the mounting side plate 401, the secondary buffer spring 407, which is sleeved around the primary buffer spring 406, will gradually close the gap between the mounting side plate 401 and the buffer baffle 404 as the buffer baffle 404 moves. When the primary buffer spring 406 is compressed to a certain extent, the side of the buffer baffle 404 will contact the other end of the secondary buffer spring 407. At this time, the secondary buffer spring 407 can provide a certain amount of support and buffering force to prevent the primary buffer spring 406 from losing its elastic recovery ability due to excessive compression. At the same time, it will prevent the buffer baffle 404 from moving further, further improving the stability of the buffer structure and avoiding damage to equipment parts caused by rigid collisions.

[0023] For further details, please refer to [link / reference]. Figure 6 , Figure 7 and Figure 8 As shown: The scraper slide plate 4010 has a groove 4011 on its top along its length. A mounting base 4012 is fixedly installed on the front and back of the pusher frame 105 near the end of the pusher hydraulic cylinder 104. A pin 4013 is fixedly installed on the top of each mounting base 4012. A lever 4014 is rotatably mounted around the pin 4013. There are two levers 4014, symmetrical about the central axis of the scraper slide plate 4010. A sliding pin 4015 is fixedly installed at the bottom of each lever 4014 near its end. The sliding pin 4015 slides inside the groove 4011. A mounting shaft 4016 is fixedly installed at the bottom of each lever 4014 away from the sliding pin 4015. A roller 4017 is rotatably mounted around the mounting shaft 4016. Two opposing limiting tracks 4022 are fixedly installed on the top of the base 101 along its width. The track 4022 has limit grooves 4023 on both opposite sides. The limit grooves 4023 include a straight section 40231 and an inclined section 40232. The straight section 40231 and the inclined section 40232 are smoothly connected. The roller 4017 rolls along the straight section 40231 and the inclined section 40232. Two linear bearings 4018 are fixedly installed on the side of the pusher frame 105 near the pusher hydraulic cylinder 104. A guide column 4019 is slidably installed inside each of the two linear bearings 4018. The scraper slide plate 4010 is fixedly installed at the end of the guide column 4019. A return spring 4020 is sleeved around the guide column 4019. A limit stop 4021 is fixedly installed at the end of the guide column 4019 away from the scraper slide plate 4010. The return spring 4021 is fixedly installed between the side of the pusher hydraulic cylinder 104 and the limit stop 4021. As the pusher frame 105 moves toward the discharge conveyor 300, it drives the scraper slide 4010 to move as well. Simultaneously, the connection between the two mounting seats 4012 and the two shaft pins 4013 drives the two levers 4014 to move as well. When the two levers 4014 move, the rollers 4017 located at the bottom of the two levers 4014 roll along the limiting grooves 4023 pre-cut on the limiting rails 4022. When the rollers 4017 roll along the straight section 40231 to the inclined section 40232, the levers 4014, while rolling obliquely along the inclined section 40232, drive the levers 401... 4. Rotate along the pivot pin 4013. At the same time, the lever 4014 drives the sliding pin 4015 to move towards the discharge conveyor 300, pushing the chute 4011 to slide inside the pusher frame 105 towards the discharge conveyor 300. This pushes the refractory brick raw material inside the pusher frame 105 towards the discharge conveyor 300, ensuring that the refractory brick raw material does not accumulate at one end of the pusher frame 105 as it moves towards the discharge conveyor 300. This ensures that the raw material falling into the extrusion groove 102 is as uniform as possible, avoiding differences in the density of the refractory bricks after molding due to uneven distribution of raw materials.

[0024] For further details, please refer to [link / reference]. Figure 7 As shown: A linkage crank arm 408 is fixedly installed at the end of the buffer slide bar 403 away from the buffer baffle 404. The linkage crank arm 408 bends and extends to the top of the pusher frame 105, and a bolt 409 is vertically installed inside the linkage crank arm 408. The bolt 409 is located along the outer periphery of the lower surface of the top of the linkage crank arm 408. A scraper slide plate 4010 is slidably installed inside the pusher frame 105 along the length of the frame body 100. During the movement of the scraper slide plate 4010, it comes into contact with two bolts 409, thereby generating a thrust on the two bolts 409 in the direction of their movement. This thrust, through the two linkage crank arms 408, drives the two buffer slide rods 403 to slide along the two linear bearings 402 towards the discharge conveyor 300. This allows the buffer rubber pad 405 to push the refractory bricks onto the discharge conveyor 300 earlier, preventing the brick blanks from not being fully pushed into place due to insufficient single-stroke movement of the pusher frame 105. Simultaneously, shortening the stroke of the pusher frame 105 reduces the advance stroke of the pusher hydraulic cylinder 104 each time, improving processing efficiency. In a cycle, after the refractory bricks are pushed above the discharge conveyor 300, the piston rod of the push hydraulic cylinder 104 drives the pusher frame 105 to reset. Under the action of the return spring 4020, the two rollers 4017 will roll back along the inclined section 40232 to the straight section 40231. At this time, the two levers 4014 rotate in opposite directions, driving the sliding pin 4015 to move and reset, and driving the scraper slide plate 4010 to move and reset, waiting for the next feeding. Meanwhile, the buffer rubber pad 405 also resets in the opposite direction under the elastic force of the first-level buffer spring 406. All structures return to their initial state and are ready for the next round of production processing.

[0025] The following is a description of a refractory brick production process during operation: First, the electric valve at the bottom of the raw material storage silo 204 opens, and a certain amount of refractory brick raw material inside the raw material storage silo 204 is injected into the rectangular hollow structure of the pusher frame 105. Then, the electric valve at the bottom of the raw material storage silo 204 closes again. Next, the piston rod of the pusher hydraulic cylinder 104 extends and pushes the pusher frame 105 towards the discharge conveyor 300. The measured amount of refractory brick raw material inside the pusher frame 105 moves with the pusher frame 105 to directly above the extrusion trough 102. Under the action of gravity, the refractory brick raw material falls into the extrusion trough. Inside 102, the lower extrusion die 103, located within the extrusion groove 102, supports the bottom of the refractory brick raw material, allowing it to remain inside the extrusion groove 102 awaiting extrusion. Next, the piston rod of the push hydraulic cylinder 104 retracts, causing the pusher frame 105 to reset. Then, the piston rod of the upper extrusion hydraulic cylinder 202 pushes the upper extrusion die 203 downwards, extruding the refractory brick raw material inside the extrusion groove 102 from top to bottom. Combined with the lower extrusion die 103 supporting the raw material at the bottom, this process extrudes the refractory brick raw material into a complete refractory brick. After the brick blank is extruded and formed, the piston rod of the upper extrusion hydraulic cylinder 202 drives the upper extrusion die 203 to return to its original position. Subsequently, the lower extrusion die 103, which supports the brick blank at the bottom, moves upward under the action of the hydraulic cylinder, raising the bottom of the extruded refractory brick blank to the same height as the upper surface of the base 101. At this time, the piston rod of the push hydraulic cylinder 104 extends again, driving the already reset pusher frame 105 to move again towards the discharge conveyor 300. During the movement, the buffer rubber pad 405 moves together with the pusher frame 105, which will push the raised brick blank... The refractory brick blank moves laterally and is eventually pushed into the discharge conveyor 300 located at the end of the main frame 100. The discharge conveyor 300 then transports the formed refractory brick to the next processing stage, completing one full refractory brick pressing and forming process. Then, the hydraulic cylinder piston rod supporting the lower extrusion die 103 drives the lower extrusion die 103 to reset downwards, and the refractory brick raw material located inside the pusher frame 105 falls back into the extrusion groove 102, waiting for pressing. Then, the process is repeated to realize continuous automated processing of refractory bricks. When the buffer rubber pad 405 comes into contact with the molded refractory brick, it generates a rigid thrust on the brick. The elasticity of the buffer rubber pad 405 absorbs the impact of this rigid thrust, preventing excessive force from causing the edges of the structurally intact refractory brick to shatter. Simultaneously, the reaction force from the refractory brick pushes the buffer baffle 404 and the two buffer rods 403 to slide axially along the two linear bearings 402, compressing the two primary buffer springs 406. This further absorbs the reverse impact force generated by the refractory brick on the buffer rubber pad 405. This dual buffering effect effectively reduces the impact damage to the refractory brick when it is pushed, while also buffering vibrations to the equipment structure and extending its lifespan. During the service life of the equipment, as the buffer baffle 404 is pushed closer to the mounting side plate 401, the secondary buffer spring 407, which is sleeved around the primary buffer spring 406, will gradually close the gap between the mounting side plate 401 and the buffer baffle 404 as the buffer baffle 404 moves. When the primary buffer spring 406 is compressed to a certain extent, the side of the buffer baffle 404 will contact the other end of the secondary buffer spring 407. At this time, the secondary buffer spring 407 can provide a certain support and buffering force to prevent the primary buffer spring 406 from losing its elastic recovery ability due to excessive compression. At the same time, it will prevent the buffer baffle 404 from moving further, further improving the stability of the buffer structure and avoiding damage to equipment parts caused by rigid collisions. As the pusher frame 105 moves toward the discharge conveyor 300, it drives the scraper slide 4010 to move as well. Simultaneously, the two mounting seats 4012 and two shaft pins 4013 connect and drive the two levers 4014 to move together. When the two levers 4014 move, the rollers 4017 located at the bottom of the two levers 4014 roll along the limiting grooves 4023 pre-cut on the limiting rails 4022. When the rollers 4017 roll along the straight section 40231 to the inclined section 40232, the levers 4014 roll obliquely along the inclined section 40232, driving the levers 4014 to move together. 14 rotates along the pivot pin 4013. Simultaneously, lever 4014 drives sliding pin 4015 to move closer to the discharge conveyor 300, pushing chute 4011 to slide closer to the discharge conveyor 300 inside the pusher frame 105. This pushes the refractory brick raw material inside the pusher frame 105 towards the discharge conveyor 300, ensuring that the refractory brick raw material does not accumulate at one end of the pusher frame 105 during its movement towards the discharge conveyor 300. This ensures that the raw material falling into the extrusion trough 102 is as uniform as possible, avoiding differences in the density of the refractory bricks after molding due to uneven raw material distribution. During the movement of the scraper slide plate 4010, it comes into contact with two bolts 409, thereby generating a thrust on the two bolts 409 in the direction of their movement. This thrust, through the two linkage crank arms 408, drives the two buffer slide rods 403 to slide along the two linear bearings 402 towards the discharge conveyor 300. This allows the buffer rubber pad 405 to push the refractory bricks onto the discharge conveyor 300 earlier, preventing the brick blanks from not being fully pushed into place due to insufficient single-movement stroke of the pusher frame 105. Simultaneously, shortening the stroke of the pusher frame 105 reduces the pushing stroke of the pusher hydraulic cylinder 104 each time, improving processing efficiency. In a cycle, after the refractory bricks are pushed above the discharge conveyor 300, the piston rod of the push hydraulic cylinder 104 drives the pusher frame 105 to reset. Under the action of the return spring 4020, the two rollers 4017 will roll back along the inclined section 40232 to the straight section 40231. At this time, the two levers 4014 rotate in opposite directions, driving the sliding pin 4015 to move and reset, and driving the scraper slide plate 4010 to move and reset, waiting for the next feeding. Meanwhile, the buffer rubber pad 405 also resets in the opposite direction under the elastic force of the first-level buffer spring 406. All structures return to their initial state and are ready for the next round of production processing.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A production process for refractory bricks, characterized in that: include: Step 1: Feed the refractory brick raw materials into the refractory brick production device; Step 2: The refractory brick production device is used to extrude the refractory brick raw material inside, so that the refractory brick raw material is formed into refractory bricks. The refractory brick production equipment includes: Frame body (100); The upper extrusion mechanism (200) is fixedly installed on the top of the frame body (100). The upper extrusion mechanism (200) and the frame body (100) form an extrusion from top to bottom to press the refractory bricks into shape. The discharge conveyor (300) is fixedly installed at the end of the frame body (100) and is used to output the formed refractory bricks; The buffer feeding mechanism (400) is fixedly installed on the main body of the frame (100) and is used for buffering the feeding of refractory bricks.

2. The production process of refractory bricks according to claim 1, characterized in that: The frame body (100) includes a base (101). At least one extrusion groove (102) is provided on the top of the base (101) along its width direction. A lower extrusion die (103) is slidably arranged inside the extrusion groove (102). A hydraulic cylinder is fixedly arranged at the bottom of the lower extrusion die (103). The cylinder body of the hydraulic cylinder is fixed inside the base (101), and the bottom of the lower extrusion die (103) is fixed to the top of the piston rod of the hydraulic cylinder.

3. The production process of refractory bricks according to claim 2, characterized in that: The upper extrusion mechanism (200) includes a mounting frame (201) fixedly installed on the periphery of the frame body (100). The mounting frame (201) extends to the top of the frame body (100). An upper extrusion hydraulic cylinder (202) is fixedly installed on the top of the mounting frame (201). The piston rod of the upper extrusion hydraulic cylinder (202) moves through the interior of the mounting frame (201). An upper extrusion die (203) is fixedly installed at the bottom of the piston rod of the upper extrusion hydraulic cylinder (202). The specifications of the upper extrusion die (203) are compatible with the specifications of the lower extrusion die (103).

4. The production process of refractory bricks according to claim 3, characterized in that: A push hydraulic cylinder (104) is fixedly installed at the top of the base (101) away from the extrusion groove (102). The piston rod of the push hydraulic cylinder (104) extends along the length of the base (101). A push frame (105) is slidably installed on the top of the base (101). The push frame (105) is a rectangular hollow structure that runs through the top and bottom. The end of the piston rod of the push hydraulic cylinder (104) is fixedly connected to the side of the push frame (105).

5. The production process of refractory bricks according to claim 4, characterized in that: The buffer feeding mechanism (400) includes a mounting side plate (401) fixedly disposed on the side of the pusher frame (105) away from the pusher hydraulic cylinder (104). A linear bearing (402) is fixedly disposed at each end of the mounting side plate (401). A buffer slide rod (403) is slidably disposed inside each linear bearing (402). A buffer baffle (404) is fixedly disposed at the end of the two buffer slide rods (403) away from the pusher hydraulic cylinder (104). A buffer rubber pad is fixed on the side of the buffer baffle (404) away from the mounting side plate (401). 405), the buffer rubber pad (405) itself is elastic, the buffer slide rod (403) is surrounded by a first-level buffer spring (406), the first-level buffer spring (406) is fixedly set between the mounting side plate (401) and the buffer baffle (404), the first-level buffer spring (406) is surrounded by a second-level buffer spring (407), one end of the second-level buffer spring (407) is fixed to the side of the mounting side plate (401) near the buffer baffle (404), and the other end of the second-level buffer spring (407) is provided with a gap between it and the side of the buffer baffle (404).

6. The production process of refractory bricks according to claim 5, characterized in that: The buffer slide bar (403) is fixedly provided with a linkage crank arm (408) at the end away from the buffer baffle (404). The linkage crank arm (408) bends and extends to the top of the pusher frame (105). A bolt (409) is vertically installed inside the linkage crank arm (408). The bolt (409) is located around the lower surface of the top of the linkage crank arm (408). A scraper slide plate (4010) is slidably provided inside the pusher frame (105) along the length direction of the frame body (100).

7. The production process of refractory bricks according to claim 6, characterized in that: The top of the scraper slide plate (4010) is provided with a groove (4011) along its length. The front and back of the pusher frame (105) are each fixedly provided with a mounting base (4012) near the end of the pusher hydraulic cylinder (104). The top of each mounting base (4012) is fixedly provided with a shaft pin (4013). A lever (4014) is rotatably provided around the shaft pin (4013). There are two levers (4014), which are symmetrical about the central axis of the scraper slide plate (4010). The bottom of the two levers (4014) are fixedly provided with a sliding pin (4015) at the end that is close to each other. The sliding pin (4015) is slidably provided inside the groove (4011).

8. The production process of refractory bricks according to claim 7, characterized in that: The bottom of the lever (4014) away from the sliding pin (4015) is fixedly provided with an installation shaft (4016). A roller (4017) is rotatably provided around the installation shaft (4016). The top of the base (101) is fixedly provided with two opposing limiting tracks (4022) along its width direction. The two limiting tracks (4022) are provided with limiting grooves (4023) on their opposite surfaces. The limiting grooves (4023) include a straight section (40231) and an inclined section (40232). The straight section (40231) and the inclined section (40232) are smoothly connected. The roller (4017) rolls along the straight section (40231) and the inclined section (40232).

9. The production process of refractory bricks according to claim 8, characterized in that: Two linear bearings (4018) are fixedly installed on one side of the pusher frame (105) near the pusher hydraulic cylinder (104). Each of the two linear bearings (4018) has a guide column (4019) slidably installed inside. The scraper slide plate (4010) is fixedly installed at the end of the guide column (4019). A return spring (4020) is sleeved around the guide column (4019). A limit stop (4021) is fixedly installed at the end of the guide column (4019) away from the scraper slide plate (4010). The return spring (4020) is fixedly installed between the side of the pusher hydraulic cylinder (104) and the limit stop (4021).

10. The production process of refractory bricks according to claim 9, characterized in that: The mounting frame (201) is fixedly equipped with a raw material storage bin (204), which is used to store refractory brick raw materials. The raw material storage bin (204) is located on the side of the upper extrusion hydraulic cylinder (202). In the initial state, the raw material storage bin (204) is located at the top of the pusher frame (105). An electric valve is provided at the bottom of the raw material storage bin (204), which is used to control the interruption of the feeding of refractory brick raw materials inside the raw material storage bin (204).

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