A method and equipment for manufacturing a sagger body

Abstract

The present invention discloses a method and apparatus for manufacturing a sagger body, belonging to the field of sagger production technology. The method comprises a feeding hopper, a first mixer, a second mixer, a pressing device, and a spraying device, which are sequentially arranged along the material conveying direction. The material is fed through the feeding hopper, mixed in the first and second mixers, and then pressed and solidified in the pressing device. The pressing device comprises a mold frame, a first pressing member disposed below the mold frame, and a second pressing member disposed above the mold frame. The second pressing member includes a vibrator for vibrating the pressed material. The spraying device is disposed on the discharge side of the pressing device and includes a clamping jaw that can clamp the pressed and solidified sagger body. Spraying nozzles are disposed on both sides of the clamping jaw to spray resin onto the sagger. After the resin is sprayed, the sagger undergoes secondary curing. The present invention is intended to address the problems of low sagger processing efficiency and poor processing quality.

Description

Technical Field

[0001] The invention belongs to the technical field of sagger production, and in particular relates to a sagger body manufacturing method and equipment. Background Art

[0002] The main function of a carbon-carbon sagger is to ensure uniform heating of the porcelain blanks in the furnace, prevent smoke and dust from contaminating the surface of the blanks, and separate the products from each other, preventing them from sticking together, thereby increasing firing density. A sagger is a type of kiln furniture, made of refractory clay in various specifications and fired at high temperatures. All porcelain blanks must be placed in the sagger before being loaded into the kiln for firing.

[0003] Traditional carbon-carbon saggers adopt a weaving process, which has low production efficiency, high cost and long production time. The pressed sagger blank is formed by mixing multiple materials and then processing. Generally, the pressing and curing time is long, the blank density is low (0.4-0.5g / cm³), and the quality of the formed sagger is poor. Therefore, a more efficient and better molding effect equipment and processing method are needed to solve the current problems. Summary of the Invention

[0004] In view of the above problems, the present invention provides a sagger body manufacturing method and equipment, which are used to solve the problems of low sagger processing efficiency and poor processing quality.

[0005] To achieve the above object, the technical solution adopted by the present invention is: a sagger body manufacturing equipment, comprising a feeding hopper, a first mixer, a second mixer, a pressing device, and a spraying device arranged in sequence along the material conveying direction; the material is fed through the feeding hopper, mixed in the first mixer and the second mixer, and pressed into shape and solidified in the pressing device;

[0006] The pressing device includes a mold frame, a first pressing member is provided below the mold frame, and a second pressing member is provided above the mold frame, and the second pressing member includes a vibrator for vibrating the pressed material;

[0007] The spraying device is arranged on the discharge side of the pressing device. The spraying device includes a clamping jaw that can clamp the pressed and solidified sagger blank. Nozzles for spraying resin onto the sagger are arranged on both sides of the clamping jaw. After being sprayed with resin, the sagger undergoes secondary curing.

[0008] As a further improvement of the above solution, the second pressed part further includes a connecting plate, and an inner core sleeved on the outer side of the vibrator is connected below the connecting plate;

[0009] A first heater is provided on the inner core.

[0010] As a further improvement of the above solution, the pressing device further includes a second heater disposed in the first pressing member, and a first hydraulic cylinder is disposed below the first pressing member to drive the first pressing member to move up and down;

[0011] The top of the second pressing member is connected with a second hydraulic cylinder for driving the second pressing member to move up and down, and the second hydraulic cylinder and the connecting plate are fixed to each other.

[0012] As a further improvement of the above solution, the nozzle is fixed in a symmetrically arranged cover, which can be moved horizontally to both sides, and when the cover is closed together, it covers the clamping claws;

[0013] A third hydraulic cylinder is provided above the clamping jaw to drive the clamping jaw to move up and down, and the output end of the third hydraulic cylinder is connected to a winding mechanism that synchronously drives the nozzle to unfold to both sides.

[0014] As a further improvement to the above solution, the winding mechanism includes a first roller and a second roller connected coaxially, a first pull rope connected to the output end of the third hydraulic cylinder is wound on the second roller, and a second pull rope fixed to the cover is wound on the third hydraulic cylinder, and the second pull rope pulls the cover toward both sides away from the clamping claws;

[0015] A winding box is provided below the cover shell for pulling the cover shell toward the middle.

[0016] As a further improvement of the above solution, a sliding rod is fixedly connected to the clamping jaw, and the top end of the sliding rod is connected to a limiting block;

[0017] The output end of the third hydraulic cylinder is connected to a transmission block, which is provided with a T-shaped slot with an opening facing downward, and the limit block can be clamped into the T-shaped slot;

[0018] A moving seat is slidably arranged on the slide bar, the moving seat is slidably arranged on a guide rail located below the slide bar, and a driving source is connected to the moving seat.

[0019] As a further improvement to the above solution, a guide rod is fixedly provided on the top of the transmission block for guidance, a slide fixed to the third hydraulic cylinder is movably provided on the outer side of the guide rod, and a horizontally movable limit rod is provided inside the slide;

[0020] A slot is provided in the middle of the guide rod, and the limiting rod can extend into the slot to limit the downward movement of the guide rod.

[0021] As a further improvement to the above solution, a first material baffle is fixedly provided on the bottom wall of the inner cavity of one of the housings, and a second material baffle is fixedly provided on the bottom wall of the inner cavity of the other housing;

[0022] The first material stop plate and the second material stop plate are arranged obliquely, and are higher toward the middle side;

[0023] A first bend with an opening toward the inside of the housing is provided at one end of the high side of the first baffle plate, and a second bend with an opening toward the bottom is provided at one end of the high side of the second baffle plate. The second bend is folded above the first bend and contacts the first bend.

[0024] A method for manufacturing a sagger using a sagger body manufacturing device, the method comprising the following steps:

[0025] Step 1: Solid ingredients: carbon fiber accounts for 20-40% of the total solid ingredients by weight; graphitized powdered carbon fiber powder accounts for 10-20% of the total solid ingredients by weight; graphitized carbon powder accounts for 5-15% of the total solid ingredients by weight; epoxy resin or phenolic resin, furfural powder accounts for 20%-40% of the total solid ingredients by weight; polyvinyl acetal accounts for 5%-15% of the total solid ingredients by weight;

[0026] Step 2: Stirring and mixing: put the materials in step 1 into the feeding hopper, and send the materials to the first mixer through the conveyor belt device for stirring and mixing. The mixed materials are sent to the second mixer through the conveyor belt device for further stirring. During stirring, spray liquid epoxy resin. The proportion of epoxy resin is 10-20% of the total weight of the solid material. The stirring time is 0.2-2 hours;

[0027] Step 3: Pressing and curing: The material mixed in step 2 is conveyed to the pressing device via a conveyor belt device. The first pressing part and the second pressing part respectively extrude the material entering the mold frame. During the extrusion process, the vibrator generates vibration with a vibration pulse frequency (50-1000 Hz), an amplitude of 0.1mm-5mm, a pressure of 5-100mpa, and a pressure holding time of 5-20min. During the vibration process, the material generates heat due to friction and solidifies.

[0028] Step 4: Secondary curing: The cured sagger body in step 3 is sent to the spraying device, sprayed with phenolic resin, then wrapped with a layer of tin foil on the surface, and placed in a dedicated curing equipment, the curing temperature is 100-300 ° C, and the curing time is 2-10 hours;

[0029] Step 5: Bury and carbonize;

[0030] Step 6: Densification, impregnation and carbonization (optional);

[0031] Step 7: Pretreatment before use;

[0032] Step 8: Machining and CVI treatment.

[0033] As a further improvement of the above solution, in step 1, the carbon fiber length is 3-10 mm;

[0034] The particle size distribution of the graphitized powdered carbon fiber powder is 100 mesh, 500 mesh, and 1000 mesh, accounting for 40%-50%, 30-40%, and 10-30% of the total weight of the graphitized powdered carbon fiber powder;

[0035] The particle sizes of the graphitized carbon powder are 200 mesh, 500 mesh and 1000 mesh, accounting for 30%-50%, 30-40% and 10-20% of the total weight of the graphitized carbon powder.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1. By arranging a feeding hopper, a first mixer, a second mixer, a pressing device, a spraying device, a conveyor belt device, and a feeding device, the automated operation of the steps from raw materials to secondary cured spray resin can be realized. By controlling the particle size and material of the sagger raw materials, during pressing, the materials during pressing can be made to rub against each other under the vibration of the vibrator, thereby automatically generating heat during the pressing process, so that the density of the sagger is uniform during pressing and molding. The first heater and the second heater can assist in heating to ensure the density of the sagger during pressing and facilitate curing.

[0038] 2. Carrying out a second curing after pressing and curing can further improve the quality of the sagger. During the secondary curing, by sending the first cured sagger into the cover for spraying, the step can be completed more quickly and the resin can be prevented from diffusing outward. The sagger coated with resin can be automatically transported outward for the subsequent secondary curing step.

[0039] 3. The opening of the cover shell and the up and down movement of the clamping jaws correspond to each other. The clamping jaws are controlled to move up and down to grab the saggar by the third hydraulic cylinder. When the output end of the third hydraulic cylinder is active, the third hydraulic cylinder can be pulled open synchronously to avoid interference with the cover shell when grabbing the saggar. After spraying is completed, the downward movement distance of the guide rod can be limited by controlling the limit rod to extend into the slot, thereby limiting the extension distance of the third hydraulic cylinder. This can ensure that when the third hydraulic cylinder is opened, there will be no collision with the saggar, and it is convenient to send out the saggar that has been sprayed with resin.

[0040] 4. When spraying resin, the first baffle plate and the second baffle plate can be used to separate the merged gap between the two cover shells to prevent the resin from leaking out of the gap, and the first bend and the second bend can be buckled with each other to facilitate the diffusion of the resin into the inside of the two cover shells. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 It is a structural schematic diagram of the spraying device;

[0043] Figure 3 for Figure 1 Schematic diagram of the structure in the A direction;

[0044] Figure 4 for Figure 3 Schematic cross-sectional view in the middle BB direction;

[0045] Figure 5 for Figure 4 Schematic diagram of the local enlarged structure at C in the middle;

[0046] Figure 6 This is a schematic diagram of the working state when the cover is closed and spraying;

[0047] Figure 7 for Figure 6 Schematic diagram of the local enlarged structure at D in the middle;

[0048] Figure 8 It is the structural diagram of the transmission block;

[0049] Figure 9 It is a structural schematic diagram of the pressing device;

[0050] Figure 10 for Figure 9 A schematic cross-sectional structural diagram along the EE direction;

[0051] Figure 11 for Figure 10 A schematic diagram of the partially enlarged structure at F above;

[0052] Figure 12 Schematic diagram of the structure of the push plate;

[0053] Figure 13 This is a structural diagram of the mold frame.

[0054] In the figure: 10, feeding hopper; 20, first mixer; 30, second mixer; 40, pressing device; 401, mold frame; 402, first pressing part; 403, second pressing part; 4031, vibrator; 4032, connecting plate; 4033, inner core; 4034, first heater; 404, second heater; 405, first hydraulic cylinder; 406, second hydraulic cylinder; 407, push plate; 50, spraying device; 501, clamping jaw; 502, nozzle; 503, cover; 504, third hydraulic cylinder; 505, first roller ; 506, second roller; 507, first pull rope; 508, second pull rope; 509, winding box; 510, movable seat; 511, guide rail; 512, transmission block; 513, slide bar; 514, limit block; 515, T-slot; 516, guide rod; 517, slide seat; 518, limit rod; 519, slot; 520, first material stop plate; 5201, first bend; 521, second material stop plate; 5211, second bend; 522, material stop sheet; 523, support frame; 60, conveyor belt device; 70, feeding device. DETAILED DESCRIPTION

[0055] In order to enable those skilled in the art to better understand the technical solution, the technical solution is described in detail below in conjunction with the embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of this patent.

[0056] See also Figure 1-13 In a specific embodiment, a sagger body manufacturing device includes a feeding hopper 10, a first mixer 20, a second mixer 30, a pressing device 40, and a spraying device 50 arranged in sequence along the material conveying direction; Figure 1 As shown, a conveyor belt device 60 is used to transport materials between the feeding hopper 10, the first mixer 20, the second mixer 30, and the pressing device 40. The materials are fed through the feeding hopper 10, mixed in the first mixer 20 and the second mixer 30, and pressed and solidified in the pressing device 40. A feeding device 70 is provided at the discharge end of the pressing device 40.

[0057] The pressing device 40 includes a mold frame 401. The structure of the mold frame 401 can be referred to in the attached Figure 13 As shown, a plurality of mold cavities for sagger pressing and molding are provided in the mold frame 401. A first pressing member 402 is provided below the mold frame 401, and a second pressing member 403 is provided above the mold frame 401. The second pressing member 403 includes a vibrator 4031 for vibrating the pressed material. During pressing, the material is fed into the mold cavity of the mold frame 401, and then the second pressing member 403 moves downward to squeeze the material. Under the vibration of the vibrator 4031, the material is pressed and molded, and frictional heat is generated to improve the density of the sagger.

[0058] The spraying device 50 is arranged on the discharge side of the pressing device 40, which can be referred to Figure 1 As shown, it is specifically arranged above the feeding device 70. The spraying device 50 includes a clamping jaw 501 that can clamp the pressed and solidified sagger blank. The clamping jaw 501 is specifically pneumatic. Nozzles 502 for spraying resin onto the sagger are provided on both sides of the clamping jaw 501. In this embodiment, the sprayed resin is phenolic resin. The spraying device 50 also includes a support frame 523. A blocking piece 522 is further provided on the support frame 523. The blocking piece 522 can block the solidified sagger when the feeding device 70 sends out the pressed sagger to facilitate the clamping of the clamping jaw 501.

[0059] When the sagger after being sprayed with resin undergoes secondary curing, the sagger sprayed with phenolic resin on the spraying device 50 is manually sent to a dedicated curing device for secondary curing. Through the feeding hopper 10, the first mixer 20, the second mixer 30, the pressing device 40, and the spraying device 50, the automated operation from raw materials to sagger curing and molding and spraying of resin can be achieved during sagger production, resulting in higher processing efficiency. Moreover, the pressing curing and secondary curing are carried out separately, which can avoid waiting and piling during the entire processing process, thereby improving processing efficiency.

[0060] like Figure 10 、 11 As shown, as a preferred embodiment of the above embodiment, the second pressing member 403 further includes a connecting plate 4032. An inner core 4033 is connected below the connecting plate 4032 and is sleeved on the outside of the vibrator 4031. The inner core 4033 and the connecting plate 4032 can move relative to each other within a small range. When the vibrator 4031 is started, the inner core 4033 is driven to vibrate together, thereby improving the density of the sagger during pressing and curing.

[0061] A first heater 4034 is provided on the inner core 4033 , and the first heater 4034 can assist in heating the sagger so that the density of the sagger can be uniform when vibrating.

[0062] The pressing device 40 also includes a second heater 404 arranged in the first pressing part 402, and the second heater 404 is also used for auxiliary heating of the sagger. A first hydraulic cylinder 405 is provided below the first pressing part 402 to drive it to move up and down; the top of the second pressing part 403 is connected to a second hydraulic cylinder 406 to drive it to move up and down, and the output end of the second hydraulic cylinder 406 is fixed to the connecting plate 4032. When performing press molding, the second hydraulic cylinder 406 connected to the second pressing part 403 is first controlled to drive it to move downward, so that the material in the mold cavity of the mold frame 401 is pressed and formed, and the vibrator 4031 is started to make the pressed sagger more dense; after the press molding and curing are completed, the second hydraulic cylinder 406 drives the connecting plate 4032 to move upward, so that the second pressing part 403 is taken out upward from the mold frame 401, and the first hydraulic cylinder 405 connected to the first pressing part 402 is started to push the formed sagger out upward.

[0063] The pressing device 40 also includes a support frame fixedly arranged between the mold frame 401, the first pressing member 402 and the second pressing member 403 slide relative to the support frame, and the first hydraulic cylinder 405 and the second hydraulic cylinder 406 are fixedly arranged between the support frame respectively; a push plate 407 is also slidably arranged above the mold frame 401, and the push plate 407 has a plurality of material frames, specifically two rows, and the number of each row is the same as the number of mold cavities on the mold frame 401, and the push plate 407 is opened on the discharge side of the pressing device 40, which can be referred to in the attached figure. Figure 12 As shown; a driving hydraulic cylinder is connected to the other end of the push plate 407. When the material is pressed and formed, the material is conveyed to the push plate 407 through the conveyor belt device 60, and then the hydraulic cylinder connected to the push plate 407 is started, so that the material frame without an opening of the push plate 407 and the mold cavity of the mold frame 401 can be aligned. When the second pressing member 403 moves downward to press the material into shape, the second pressing member 403 moves upward under the drive of the second hydraulic cylinder 406, and the hydraulic cylinder connected to the push plate 407 drives the push plate 407 to retreat, and then the first hydraulic cylinder 405 drives the first pressing member 402 upward to push the pressed sagger upward, just to push it out into the material frame with an opening on the push plate 407. When the push plate 407 performs the next loading, the pressed sagger can be synchronously sent to the discharge side.

[0064] like Figure 2 、 3 , 4, 5, 6, 7, and 8, as a preferred embodiment of the above embodiment, the nozzle 502 is fixed in a symmetrically arranged cover 503, and the cover 503 can move horizontally to both sides. When the cover 503 is closed, the clamping jaw 501 is covered. A pipe is provided on the outside of the cover 503, directly passing through the cover 503 and communicating with the nozzle 502. A discharge port for discharging excess resin is provided on the bottom surface of the cover 503;

[0065] A third hydraulic cylinder 504 is provided above the clamping jaw 501 to drive the clamping jaw 501 to move up and down. Specifically, the third hydraulic cylinder 504 is provided on the support frame 523, and the cover shell 503 and the support frame 523 are provided to slide relative to each other. The output end of the third hydraulic cylinder 504 is connected to a winding mechanism that synchronously drives the nozzle 502 to unfold to both sides.

[0066] The winding mechanism includes a first winding roller 505 and a second winding roller 506 which are coaxially connected. Figure 2As shown, the first roller 505 and the second roller 506 are rotatably arranged on the side of the support frame 523, and the diameter of the second roller 506 is smaller than that of the first roller 505. A first pull rope 507 connected to the output end of the third hydraulic cylinder 504 is wound on the second roller 506, and a second pull rope 508 fixed to the cover 503 is wound on the third hydraulic cylinder 504. In this embodiment, the first pull rope 507 and the second pull rope 508 are both steel ropes, and a reversing pulley is also provided on the support frame 523. After the second pull rope 508 passes around the pulley, By changing the pulling direction, the second pull rope 508 can pull the cover shell 503 toward both sides and away from the clamping claws 501; a winding box 509 is provided below the cover shell 503 to pull the cover shell 503 toward the middle, and the interior of the winding box 509 is also connected to the cover shell 503 through a steel rope wrapped around a roller. The shell of the winding box 509 is fixed to the support frame 523, and the winding roller inside the winding box 509 adopts a clockwork device, which can have a tendency to pull back when the steel rope is pulled out, thereby driving the two cover shells 503 moving to the sides to gather toward the middle;

[0067] By means of the winding mechanism, when the third hydraulic cylinder 504 drives the clamping jaws 501 to clamp the sagger downward, the first pull rope 507 can be synchronously driven and pulled. The first pull rope 507 will drive the second roller 506 and the first roller 505 to rotate synchronously. The diameter of the first roller 505 is larger than that of the second roller 506. When rotating, the first roller 505 will wind up more second pull ropes 508, so that the cover shell 503 can slide a greater distance to both sides, so as to avoid collision between the clamping jaws 501 and the cover shell 503 when they move downward to clamp the sagger or move upward to clamp the sagger.

[0068] The clamping jaw 501 is fixedly connected to a slide bar 513, the top of which is connected to a limit block 514; the output end of the third hydraulic cylinder 504 is connected to a transmission block 512, which is provided with a T-slot 515 with an opening facing downwards, and the limit block 514 can be inserted into the T-slot 515. Figure 5 As shown;

[0069] A movable seat 510 is slidably provided on the slide bar 513. Figure 3 、 4The movable seat 510 is slidably arranged on the guide rail 511 located below it, and the guide rail 511 and the support frame 523 are fixed to each other, and the guide rail 511 extends out of the support frame 523, and a support column is provided on the outside of the support frame 523 for supporting the extended guide rail 511. The movable seat 510 is connected to a driving source. In this embodiment, the driving source connected to the movable seat 510 includes a motor fixedly arranged on the support frame 523, and a threaded rod is connected to the output shaft of the motor. The threaded rod and the connecting block on the movable seat 510 are threadedly connected to each other, and the length of the threaded rod is equal to the length of the guide rail 511. A feeding trough for placing the sagger is provided below the extended guide rail 511. The feeding trough is arranged at an angle. When performing secondary curing, the clamping jaws 501 place the sprayed sagger on the feeding trough, and the sagger on the feeding trough is taken away manually for processing. When manually taking, a baffle needs to be provided on the feeding trough to block it, or a conveyor belt is provided at the end of the feeding trough for transmission.

[0070] In this embodiment, by providing a T-slot 515 in the transmission block 512, the clamping jaws 501 can be driven to move up and down to normally perform the clamping and placing functions. When the sprayed sagger is taken out, the sliding rod 513 is driven by the movable seat 510 to move, so that the limit block 514 can be normally taken out of the T-slot 515 without affecting the horizontal transmission of the sagger.

[0071] In order to avoid collision and interference with the cover 503 when the horizontal conveyor sagger is sent out, a guide rod 516 for guiding is fixedly provided on the top of the transmission block 512. The guide rod 516 and the support frame 523 are fixed to each other. A slide 517 fixed to the third hydraulic cylinder 504 is movably provided on the outer side of the guide rod 516. A horizontally movable limit rod 518 is provided in the slide 517. Figure 5 As shown, the slide 517 and the support frame 523 are fixed to each other, and a cylinder for driving the limit rod 518 to move is provided on the outside of the slide 517;

[0072] A slot 519 is provided in the middle of the guide rod 516, and a limit rod 518 can be extended into the slot 519 to limit the downward movement of the guide rod 516. Specifically, when the clamping jaws 501 move downward to grab the saggar to be sprayed, the limit rod 518 will not be inserted into the slot 519, so that the third hydraulic cylinder 504 moves downward with the maximum stroke, which is convenient for grabbing the saggar. When the sprayed saggar is sent out, in order to avoid collision with the cover shell 503, it is necessary to control the third hydraulic cylinder 504 to start and drive the cover shell 503 to open. However, in order to prevent the third hydraulic cylinder 504 from extending too long and colliding with the side of the support frame 523, the limit rod 518 is provided and inserted into the slot 519 to limit the downward movement of the guide rod 516, thereby preventing the movable slide rod 513 from moving too long downward. When ensuring that the cover shell 503 can be fully opened, it will not collide with the side of the support frame 523, so that the clamped saggar can be smoothly transmitted to the feeding trough.

[0073] like Figure 6 、 7 As shown, as a preferred embodiment of the above embodiment, a first baffle plate 520 is fixedly provided on the bottom wall of the inner cavity of one housing 503, and a second baffle plate 521 is fixedly provided on the bottom wall of the inner cavity of the other housing 503;

[0074] The first baffle plate 520 and the second baffle plate 521 are arranged obliquely and are higher toward the middle, so that the resin flowing out during the spraying process can flow to both sides into the housing 503 and out from the outlet in the housing 503;

[0075] The first baffle plate 520 has a first bend 5201 with an opening toward the interior of the housing 503 at one end of its high side, and a second bend 5211 with an opening facing downward at one end of its high side. The second bend 5211 is buckled above the first bend 5201 and in contact with the first bend 5201. Figure 7 As shown, the first bend 5201 and the nozzle 5022 are right-angle bends made of sheet metal, and their main function is to prevent resin from flowing into the gap between the two cover shells 503.

[0076] A method for manufacturing a sagger using a sagger body manufacturing device, the method comprising the following steps:

[0077] Step 1: Solid ingredients: carbon fiber accounts for 20-40% of the total solid ingredient weight, and the carbon fiber length is 3-10mm; graphitized carbon fiber powder accounts for 10-20% of the total solid ingredient weight, and the graphitized carbon fiber powder particle size distribution of 100 mesh, 500 mesh, and 1000 mesh accounts for 40%-50%, 30-40%, and 10-30% of the total weight of the graphitized carbon fiber powder; graphitized carbon powder accounts for 5-15% of the total solid ingredient weight, and the graphitized carbon powder particle size distribution of 200 mesh, 500 mesh, and 1000 mesh accounts for 30%-50%, 30-40%, and 10-20% of the total weight of the graphitized carbon powder; epoxy resin or phenolic formaldehyde, furfural powder accounts for 20%-40% of the total solid ingredient weight, and polyvinyl acetal accounts for 5%-15% of the total solid ingredient weight;

[0078] Step 2: Stirring and mixing: The material in step 1 is put into the feeding hopper 10, and the material is sent to the first mixer 20 through the conveyor belt device 60 for stirring and mixing. The mixed material is sent to the second mixer 30 through the conveyor belt device 60 for further stirring. During stirring, liquid epoxy resin is sprayed. The proportion of epoxy resin is 10-20% of the total weight of the solid material. The stirring time is 0.2-2 hours;

[0079] Step 3: Pressing and curing: The material mixed in step 2 is conveyed to the pressing device 40 via the conveyor belt device 60. The first pressing member 402 and the second pressing member 403 respectively extrude the material entering the mold frame 401. During the extrusion process, 4031 vibrates with a vibration pulse frequency (50-1000 Hz), an amplitude of 0.1 mm-5 mm, a pressure of 5-100 MPa, and a pressure holding time of 5-20 minutes. During the vibration process, the material generates heat due to friction and solidifies.

[0080] Step 4: Secondary curing: put the cured sagger body in step 3 into 50, spray phenolic resin, then wrap a layer of tin foil on the surface and place it in a dedicated curing equipment, curing temperature 100-300 ° C, curing time 2-10h;

[0081] When spraying phenolic resin, the feeding device 70 first sends out the pressed sagger, and the blocking piece 522 blocks the sagger. At this time, the third hydraulic cylinder 504 is started, and the third hydraulic cylinder 504 drives the slide bar 513 and the clamping jaws 501 to move downward. While the clamping jaws 501 move downward, the cover shell 503 is pulled open to both sides through the winding mechanism, so that the clamping jaws 501 can be smoothly extended downward. The clamping jaws 501 automatically clamp the sagger. The third hydraulic cylinder 504 drives the clamping jaws 501 to retract upward. When reaching the highest position, the cover shell 503 completely wraps the clamping jaws 501 in the middle.

[0082] At this time, liquid phenolic resin is introduced into the nozzle 502 and sprayed on the surface of the sagger. After the spraying is completed, the cylinder connected to the limit rod 518 can be controlled to start, so that the limit rod 518 extends into the slot 519, limiting the movement of the guide rod 516, and starting the third hydraulic cylinder 504. Due to the limitation of the limit rod 518, the third hydraulic cylinder 504 is not fully extended when it extends downward, and the cover shell 503 is just unfolded at this time, and will not collide with the sagger or the side of the support frame 523. Starting the motor connected to the moving seat 510 can make the moving seat 510 drive the sliding rod 513 to move horizontally, thereby The sagger in the cover shell 503 is transported to the feeding trough, and then the clamping claw 501 is controlled to send the clamped sagger out, and then the motor connected to the movable seat 510 is controlled to reverse, thereby driving the movable seat 510 to move in the opposite direction, so that the limit block 514 can smoothly enter the T-slot 515, and the clamping claw 501 can smoothly enter the cover shell 503. The third hydraulic cylinder 504 retracts upward, and the slide rod 513 moves upward accordingly. The cover shell 503 moves toward the center under the drive of the winding box 509 to cover the clamping claw 501. When the next spraying is carried out, the cylinder connected to the limit rod 518 controls its retraction, so that the third hydraulic cylinder 504 can be fully extended downward.

[0083] Step 5: Bury and carbonize;

[0084] Step 6: Densification, impregnation and carbonization (optional, this step can be omitted if needed);

[0085] Step 7: Pre-treatment before use: vacuum high-temperature treatment in a high-temperature furnace at a temperature of 1500-3000°C. High temperature improves its thermal conductivity, eliminates stress and impurities, and prevents deformation during use.

[0086] Step 8: Machining and CVI treatment.

[0087] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device. This article uses specific examples to illustrate the principles and implementation methods of the technical solution of this patent. The above examples are only used to help understand the method of this patent and its core ideas. The above are only preferred implementation methods of this patent. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this patent, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the patent's concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this patent.

Claims

1. A sagger body manufacturing equipment, characterized in that, The invention comprises a feeding hopper (10), a first mixer (20), a second mixer (30), a pressing device (40), and a spraying device (50) which are sequentially arranged along the conveying direction of the material; the material is fed into the feeding hopper (10), mixed in the first mixer (20) and the second mixer (30), and pressed and solidified in the pressing device (40); The pressing device (40) includes a mold frame (401), a first pressing member (402) is provided below the mold frame (401), and a second pressing member (403) is provided above the mold frame (401), and the second pressing member (403) includes a vibrator (4031) for vibrating the pressed material; The spraying device (50) is arranged on the discharge side of the pressing device (40), and the spraying device (50) includes a clamping jaw (501) that can clamp the pressed and solidified sagger blank, and nozzles (502) are arranged on both sides of the clamping jaw (501) to spray resin onto the sagger, and the sagger after being sprayed with resin is subjected to secondary curing; The nozzle (502) is fixed in a symmetrically arranged cover (503), and the cover (503) can move horizontally to both sides. When the cover (503) is closed together, the clamping claw (501) is covered; A third hydraulic cylinder (504) is provided above the clamping jaw (501) to drive the clamping jaw (501) to move up and down, and an output end of the third hydraulic cylinder (504) is connected to a winding mechanism that synchronously drives the nozzle (502) to unfold to both sides. The winding mechanism comprises a first winding roller (505) and a second winding roller (506) which are coaxially connected, a first pull rope (507) connected to the output end of the third hydraulic cylinder (504) being wound on the second winding roller (506), a second pull rope (508) fixed to the cover (503) being wound on the third hydraulic cylinder (504), and the second pull rope (508) pulling the cover (503) in a direction away from the clamping claw (501) toward both sides; A winding box (509) is provided below the cover shell (503) for pulling the cover shell (503) toward the middle.

2. A sagger body manufacturing equipment according to claim 1, characterized in that, The second pressed part (403) further includes a connecting plate (4032), and an inner core (4033) is connected below the connecting plate (4032) and is sleeved on the outside of the vibrator (4031); A first heater (4034) is provided on the inner core (4033).

3. A sagger body manufacturing equipment according to claim 2, characterized in that, The pressing device (40) further includes a second heater (404) disposed within the first pressing member (402), and a first hydraulic cylinder (405) for driving the first pressing member (402) to move up and down is disposed below the first pressing member (402). The top of the second pressing member (403) is connected to a second hydraulic cylinder (406) for driving the second pressing member (403) to move up and down, and the second hydraulic cylinder (406) and the connecting plate (4032) are fixed to each other.

4. The sagger body manufacturing equipment according to claim 1, characterized in that: The clamping jaw (501) is fixedly connected to a slide rod (513), and the top end of the slide rod (513) is connected to a limit block (514); The output end of the third hydraulic cylinder (504) is connected to a transmission block (512), and a T-shaped slot (515) with a downward opening is provided on the transmission block (512), and the limit block (514) can be clamped into the T-shaped slot (515); A moving seat (510) is slidably provided on the slide bar (513), the moving seat (510) is slidably provided on a guide rail (511) located below the moving seat (510), and a driving source is connected to the moving seat (510).

5. The sagger manufacturing equipment according to claim 4, characterized in that: A guide rod (516) for guiding is fixedly provided on the top of the transmission block (512); a slide seat (517) fixed to the third hydraulic cylinder (504) is movably provided on the outer side of the guide rod (516); a horizontally movable limit rod (518) is provided inside the slide seat (517); A slot (519) is provided in the middle of the guide rod (516), and the limiting rod (518) can extend into the slot (519) to limit the downward movement of the guide rod (516).

6. The sagger body manufacturing equipment according to claim 1, characterized in that: A first material baffle (520) is fixedly provided on the bottom wall of the inner cavity of one of the housings (503), and a second material baffle (521) is fixedly provided on the bottom wall of the inner cavity of the other housing (503); The first material blocking plate (520) and the second material blocking plate (521) are arranged obliquely and are higher toward the middle side; A first bend (5201) with an opening facing the interior of the housing (503) is provided at one end of the high side of the first baffle plate (520), and a second bend (5211) with an opening facing downward is provided at one end of the high side of the second baffle plate (521), the second bend (5211) being buckled above the first bend (5201) and in contact with the first bend (5201).

7. A method for manufacturing a sagger using the sagger body manufacturing equipment according to any one of claims 1 to 6, characterized in that: The method comprises the following steps: Step 1: Solid ingredients: carbon fiber accounts for 20-40% of the total solid ingredients by weight; graphitized powdered carbon fiber powder accounts for 10-20% of the total solid ingredients by weight; graphitized carbon powder accounts for 5-15% of the total solid ingredients by weight; epoxy resin or phenolic resin, furfural powder accounts for 20%-40% of the total solid ingredients by weight; polyvinyl acetal accounts for 5%-15% of the total solid ingredients by weight; Step 2: Stirring and mixing: the material in step 1 is put into the feeding hopper (10), and the material is sent to the first mixer (20) through the conveyor belt device (60) for stirring and mixing. The mixed material is sent to the second mixer (30) through the conveyor belt device (60) for further stirring. During stirring, liquid epoxy resin is sprayed, and the proportion of epoxy resin is 10-20% of the total weight of the solid material. The stirring time is 0.2-2 hours; Step 3: Pressing and solidifying: The material mixed in step 2 is conveyed to the pressing device (40) via the conveyor belt device (60), and the first pressing member (402) and the second pressing member (403) respectively extrude the material entering the mold frame (401). During the extrusion process, the vibrator (4031) vibrates with a vibration pulse frequency (50-1000 Hz), an amplitude of 0.1 mm-5 mm, a pressure of 5-100 MPa, and a pressure holding time of 5-20 minutes. During the vibration process, the material generates heat due to friction and solidifies. Step 4: Secondary curing: the cured sagger body in step 3 is sent to the spraying device (50), sprayed with phenolic resin, then wrapped with a layer of tin foil on the surface, and placed in a dedicated curing device, with a curing temperature of 100-300°C and a curing time of 2-10 hours; Step 5: Bury and carbonize; Step 6: densification, impregnation and carbonization; Step 7: Pretreatment before use; Step 8: Machining and CVI treatment.

8. The method for manufacturing a sagger using the sagger body manufacturing equipment according to claim 7, characterized in that: In step 1, the carbon fiber length is 3-10 mm; The particle size distribution of the graphitized powdered carbon fiber powder is 100 mesh, 500 mesh, and 1000 mesh, accounting for 40%-50%, 30-40%, and 10-30% of the total weight of the graphitized powdered carbon fiber powder; The particle sizes of the graphitized carbon powder are 200 mesh, 500 mesh and 1000 mesh, accounting for 30%-50%, 30-40% and 10-20% of the total weight of the graphitized carbon powder.

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