Production equipment and production process of rock wool fiber board

Abstract

The invention belongs to the technical field of rock wool fiber board production, and particularly relates to rock wool fiber board production equipment and a production process, the rock wool fiber board production equipment comprises a base frame, a conveying belt group is arranged on the base frame, a spreading bin is arranged on the base frame, a vibration conveying mechanism is arranged below the spreading bin, and a pre-pressing cover is arranged on the base frame; according to the production equipment of the rock wool fiber board, a movable block on a spreading bin drives a corrugated pipe to reciprocate on a feeding port, uniform spreading of rock wool fibers is achieved, meanwhile, a rubbing rod in a cleaning mechanism is matched with a connecting pipe, and a feeding channel is prevented from being blocked; a second spring and a vibration motor of the vibration conveying mechanism further ensure uniform distribution of rock wool fibers and reduce uneven local density, a plurality of pre-pressing rollers with gradually decreased heights are driven by a synchronous wheel, a synchronous belt and a second servo motor, gradual compaction is achieved, meanwhile, pricking needles in the pricking mechanism continuously prick the rock wool fiber board, and the rock wool fiber board is compacted. And the structural strength and stability of the rock wool fiber board are enhanced.

Description

Technical Field

[0001] The present invention belongs to the technical field of rock wool fiber board production, and particularly relates to a production device and a production process for rock wool fiber boards. Background Art

[0002] Rock wool fiber board, also known as rock wool board, is a kind of artificial inorganic fiber board made from natural ores such as basalt as the main raw material, melted into fibers at high temperature and then added with appropriate binders, etc. It has the characteristics of heat insulation, fire resistance, sound absorption and noise reduction, light weight and firmness.

[0003] In the current field of rock wool fiber board production, the pendulum method and the sedimentation method are two mainstream cotton laying processes. The pendulum method forms a three-dimensional structure with multiple layers of intersections by repeatedly laying and compacting rock wool fibers. This unique structure endows the product with high strength. However, during the production process of this process, the uneven distribution of fibers is likely to cause local density differences, resulting in the quality problem of uneven density of the rock wool fiber board. The sedimentation method uses the principle of natural accumulation, allowing rock wool fibers to freely fall and accumulate by gravity in the sedimentation chamber. The density of the rock wool fiber board obtained in this way is relatively uniform, but due to the lack of the support of the multi-layer intersection structure, the overall strength of the product is relatively limited. Summary of the Invention

[0004] The purpose of the present invention is to provide a production device and a production process for rock wool fiber boards with uniform cotton laying in order to solve the above problems.

[0005] The present invention realizes the above purpose through the following technical solutions: A production device for rock wool fiber boards includes a base frame, on which a conveyor belt group is arranged. It is characterized in that: a feeding bin is arranged on the base frame, a vibration transportation mechanism is arranged below the feeding bin, and a pre-pressing cover is arranged on the base frame; It further includes: Pre-pressing rollers, there are multiple pre-pressing rollers, the pre-pressing rollers are rotatably arranged on the pre-pressing cover, and the heights of the multiple pre-pressing rollers are connected in a decreasing form; Cams, the cams are fixedly arranged on the pre-pressing cover, and the pre-pressing rollers are sleeved on the cams; Needling mechanisms, the needling mechanisms are arranged on the pre-pressing rollers, and through the cooperation of the needling mechanisms and the cams, when the needling mechanisms contact the rock wool fibers, they needle the rock wool fibers.

[0006] As a further optimized solution of the present invention, hollow shafts are provided at both ends of the pre-pressing roller. The pre-pressing roller is rotatably arranged on the pre-pressing cover through the hollow shafts. Synchronous pulleys are arranged on the hollow shafts, and a synchronous belt is connected between adjacent hollow shafts through the synchronous pulleys. A second servo motor is arranged on the pre-pressing cover, and bevel gears are arranged at the output end of the second servo motor and on one of the hollow shafts, and the two bevel gears are engaged with each other.

[0007] As a further optimized solution of the present invention, a cross bar is fixedly arranged on the pre-pressing cover. The hollow shaft is sleeved on the cross bar, and the cam is fixedly arranged on the cross bar.

[0008] As a further optimized solution of the present invention, the needling mechanism includes a plurality of needles. A sliding sleeve is arranged on the inner wall of the pre-pressing roller. The needles are arranged in an annular array and are slidably arranged on the pre-pressing roller through the sliding sleeve. A first spring is arranged between the needle and the sliding sleeve. The first spring is sleeved on the needle. One end of the needle is provided with a roller, and the roller is rotatably arranged on the surface of the cam.

[0009] As a further optimized solution of the present invention, a feeding port is arranged on the material spreading bin. A movable block is slidably arranged in the feeding port. Open-mouthed bellows are arranged between both sides of the movable block and the inner wall of the feeding port. A lead screw is rotatably arranged on the feeding port. A sliding rod is fixedly arranged on one side of the lead screw. The movable block is threadedly connected with the lead screw. The movable block is slidably arranged on the sliding rod. A first servo motor is arranged on the feeding port, and the output end of the first servo motor is fixedly connected with the lead screw. A shielding plate is arranged on the movable block. The lower end of the open-mouthed bellows is connected with the shielding plate. A cleaning mechanism is arranged on the movable block.

[0010] As a further optimized solution of the present invention, the cleaning mechanism includes a connecting pipe. The connecting pipe is arranged through the movable block. A rotating ring is rotatably arranged on the shielding plate. Tooth protrusions are arranged on the surface of the rotating ring. A gear is rotatably arranged on the movable block. The rotating ring is connected with the gear through the tooth protrusions. A rack is arranged on the feeding port. The rack is engaged with the gear. The rack is arranged in the open-mouthed bellows. A scraping rod is fixedly arranged on the inner side of the rotating ring. The scraping rod is attached to the inner wall of the connecting pipe.

[0011] As a further optimized solution of the present invention, the vibrating transportation mechanism includes an installation cover. Wings are arranged on both sides of the installation cover. A second spring is arranged between the wings and the base frame. A plurality of transportation rollers are rotatably arranged on the installation cover. A belt is sleeved on the transportation rollers. A third servo motor is fixed on the installation cover. The output end of the third servo motor penetrates through the installation cover and is fixedly connected with one of the transportation rollers. A vibrating motor is fixedly arranged on the installation cover.

[0012] As a further optimization solution of the present invention, a bracket is provided on the base frame, a bellows is connected to the bracket, and the bellows is fixedly connected to the connecting pipe.

[0013] As a further optimization scheme of the present invention, a negative pressure cover is provided on the base frame, a brush roller is rotatably provided on the negative pressure cover, a brush motor is provided on the negative pressure cover, the output end of the brush motor passes through the negative pressure cover and is connected to the brush roller, and a negative pressure tube is provided on the negative pressure cover.

[0014] A production process of rock wool fiberboard, the process flow is as follows: S1: Evenly feed the block or compressed rock wool fiber raw materials into the feeding port of the de-wool machine, and use mechanical force to tear and hit the raw materials to decompose them into loose fiber bundles; S2: The unraveled fibers are further combed into a uniform fiber web through a carding machine to remove residual impurities and adjust the fiber direction; S3: The carded fiber web is broken up and broken into single fibers, which are then fed into a cyclone through a pipe. The binder is sprayed from a nozzle by a high-pressure pump to form droplets, which fully contact the high-speed rotating fibers in the cyclone and are transported out at the same time; S4: The rock wool fibers mixed with the binder enter the paving bin through the corrugated pipe; S5: The movable block drives the corrugated pipe to move back and forth, so that the rock wool fibers are spread on the vibrating transport mechanism, and the vibration of the vibrating transport mechanism ensures that the rock wool fibers are evenly distributed; S6: The evenly distributed rock wool fibers are transported to the conveyor belt group, and the rock wool fibers are pressurized and shaped by the gradually lowered pre-pressing rollers. At the same time, the needles on the pre-pressing rollers puncture the rock wool fibers during the pressurization and shaping process. S7: The needle-punched rock wool fiberboard enters the negative pressure hood, and the floating cotton on its surface is cleaned by a brush roller; S8: hot pressing and curing the pre-pressed and cleaned rock wool fiberboard; S9: Cutting the hot-pressed and solidified rock wool fiberboard.

[0015] The beneficial effects of the present invention are: 1. Different from the existing technology, in actual use, the movable block on the paving bin drives the corrugated pipe to reciprocate on the feed port to achieve uniform paving of rock wool fibers. At the same time, the scratching rod in the cleaning mechanism cooperates with the connecting pipe to avoid blockage of the feed channel; the spring 2 and the vibration motor of the vibrating transport mechanism further ensure the uniform distribution of rock wool fibers and reduce local density unevenness.

[0016] 2. Different from the prior art, during actual use, multiple pre-pressing rollers with decreasing heights are driven by synchronous pulleys, synchronous belts, and servo motor two to achieve progressive compaction. At the same time, the needle punching mechanism continuously punches the rock wool fiber board, piercing the fiber layer, forcing some fibers to displace along the movement direction of the needles, generating mechanical hook connection and entanglement with the surrounding fibers, enhancing the structural strength and stability of the rock wool fiber board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the split structure of the material laying bin of the present invention; Figure 3 is a schematic diagram of the partial sectional structure of the baffle of the present invention; Figure 4 is a schematic diagram of the pre-pressing cover structure of the present invention; Figure 5 is a schematic diagram of the connection mechanism of the negative pressure cover of the present invention; Figure 6 is a schematic diagram of the pre-pressing roller structure of the present invention; Figure 7 is along Figure 6 the schematic diagram of the structure observed in the L-L direction in; Figure 8 is a schematic diagram of the connection structure of the vibration transportation mechanism of the present invention; Figure 9 is a schematic diagram of the vibration transportation mechanism structure of the present invention.

[0018] In the figure: 1, base frame; 2, material laying bin; 21, feed inlet; 22, opening bellows cover; 23, movable block; 231, baffle; 232, lead screw; 233, slide bar; 24, servo motor one; 3, pre-pressing cover; 4, cleaning mechanism; 41, connecting pipe; 42, rotating ring; 421, tooth protrusion; 43, gear; 44, rack; 45, scraping rod; 5, pre-pressing roller; 51, synchronous belt; 52, bevel gear; 53, servo motor two; 54, hollow shaft; 6, needle punching mechanism; 61, needle; 62, roller; 63, spring one; 64, sliding sleeve; 7, cam; 71, cross bar; 8, vibration transportation mechanism; 81, mounting cover; 82, transportation roller; 83, belt; 84, servo motor three; 85, spring two; 86, vibration motor; 9, brush roller; 91, negative pressure cover; 92, negative pressure pipe; 93, brush motor; 10, bellows; 11, conveyor belt group. DETAILED DESCRIPTION OF THE INVENTION

[0019] The present application will be further described in detail below with reference to the accompanying drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Embodiment 1: As Figure 1 - Figure 9 shown, a production device for rock wool fiber boards includes a base frame 1. A conveyor belt group 11 is arranged on the base frame 1, and a pre-pressing cover 3 is arranged on the base frame 1. The overall structure of the device is supported by the base frame 1 as the core. The conveyor belt group 11 is responsible for the transmission of rock wool fibers, and pre-pressing treatment is carried out in the pre-pressing cover 3, thereby constructing the basic framework for the production of rock wool fiber boards and providing hardware support for the stable operation of a series of subsequent production processes.

[0021] A feeding bin 2 is arranged on the base frame 1, and a bracket is arranged on the base frame 1. The bracket is located above the feeding bin 2. A corrugated pipe 10 is connected to the bracket. An inlet 21 is arranged on the feeding bin 2. A movable block 23 is slidably arranged in the inlet 21. Open-ended bellows 22 are arranged between both sides of the movable block 23 and the inner wall of the inlet 21. A lead screw 232 is rotatably arranged on the inlet 21. A slide bar 233 is fixedly arranged on one side of the lead screw 232. The movable block 23 is threadedly connected to the lead screw 232, and the movable block 23 is slidably arranged on the slide bar 233. A servo motor 1 24 is arranged on the inlet 21. The output end of the servo motor 1 24 is fixedly connected to the lead screw 232. A shielding plate 231 is arranged on the movable block 23. The lower end of the open-ended bellows 22 is connected to the shielding plate 231. By driving the lead screw 232 to rotate through the servo motor 1 24, the movable block 23 is driven to reciprocate under the guidance of the slide bar 233, so that the laying position and range of rock wool fibers can be accurately controlled. The open-ended bellows 22 can effectively prevent fiber overflow, keep the working environment clean, and create good conditions for subsequent uniform feeding.

[0022] A cleaning mechanism 4 is provided on the movable block 23. The cleaning mechanism 4 includes a connecting pipe 41. The corrugated pipe 10 is fixedly connected to the connecting pipe 41. The connecting pipe 41 is disposed through the movable block 23. A rotating ring 42 is rotatably provided on the shielding plate 231. Tooth protrusions 421 are formed on the surface of the rotating ring 42. A gear 43 is rotatably provided on the movable block 23. The rotating ring 42 is connected to the gear 43 through the tooth protrusions 421. A rack 44 is provided on the feeding port 21. The rack 44 meshes with the gear 43. The rack 44 is disposed within the opening bellows 22. A scraping rod 45 is fixedly provided inside the rotating ring 42. The scraping rod 45 is in contact with the inner wall of the connecting pipe 41. When the movable block 23 moves, the gear 43 meshes with the rack 44 to drive the rotating ring 42 to rotate, and the scraping rod 45 scrapes the fibers attached to the inner wall of the connecting pipe 41, preventing fiber accumulation from blocking the pipeline, ensuring the smoothness of the rock wool fiber conveying channel, effectively reducing the number of equipment shutdowns for maintenance caused by pipeline blockages, improving production efficiency, and the shielding plate 231 prevents fibers from adhering to the gear 43.

[0023] A plurality of pre-pressing rollers 5 are rotatably provided on the pre-pressing cover 3. The heights of the plurality of pre-pressing rollers 5 are connected in a decreasing form. Both ends of the pre-pressing roller 5 are provided with hollow shafts 54. The pre-pressing roller 5 is rotatably provided on the pre-pressing cover 3 through the hollow shafts 54. Synchronous wheels are provided on the hollow shafts 54. Synchronous belts 51 are connected between adjacent hollow shafts 54 through the synchronous wheels. A servo motor II 53 is provided on the pre-pressing cover 3. Bevel gears 52 are provided at the output end of the servo motor II 53 and on one of the hollow shafts 54. The two bevel gears 52 engage with each other. The servo motor II 53 is driven through the bevel gears 52, and drives the plurality of pre-pressing rollers 5 to rotate synchronously through the hollow shafts 54, synchronous wheels and synchronous belts 51. The pre-pressing rollers 5 with decreasing heights can perform progressive pressing on the rock wool fibers, gradually compressing the rock wool fibers. Compared with single-pressure compaction, this method can better ensure the uniformity of the internal structure of the rock wool fibers, thereby improving the overall quality of the rock wool fiber board.

[0024] A cam 7 is fixedly arranged on the preloading cover 3, with the convex part of the cam 7 facing downwards. The preloading roller 5 is sleeved on the cam 7. A cross bar 71 is fixedly arranged on the preloading cover 3, and a hollow shaft 54 is sleeved on the cross bar 71. The cam 7 is fixedly arranged on the cross bar 71. A needling mechanism 6 is arranged on the preloading roller 5. Through the cooperation of the needling mechanism 6 and the cam 7, when the needling mechanism 6 contacts the rock wool fiber, it needles the rock wool fiber. The needling mechanism 6 includes a plurality of needles 61. A sliding sleeve 64 is arranged on the inner wall of the preloading roller 5. The needles 61 are arranged in an annular array and are slidably arranged on the preloading roller 5 through the sliding sleeve 64. A first spring 63 is arranged between the needle 61 and the sliding sleeve 64. The first spring 63 is sleeved on the needle 61. One end of the needle 61 is provided with a roller 62, and the roller 62 is rotatably arranged on the surface of the cam 7. The arrangement of the cam 7 provides a basis for the movement track of the needling mechanism 6. Cooperating with the cross bar 71, it ensures that during the rotation of the preloading roller 5, the cam 7 can stably cooperate with the needling mechanism 6, providing a reliable movement driving source for the rock wool fiber needling process. When the preloading roller 5 rotates, the roller 62 rolls along the contour of the cam 7, controlling the expansion and contraction of the needle 61 to needle the rock wool fiber. The first spring 63 provides a reset force to ensure that the needle 61 can be reset in time to avoid fiber entanglement. At the same time, since the convex part of the cam 7 faces downwards, the needle 61 can only extend when the preloading roller 5 contacts the rock wool fiber. In this way, adjacent preloading rollers 5 can be closely close to each other, so that the rock wool fiber board can be continuously stressed, ensuring that every part of the rock wool fiber can be fully extruded during the initial compaction process, reducing the problem of insufficient local compaction caused by too large a spacing. The needling process can enhance the interweaving force between the rock wool fibers, significantly improving the structural strength and stability of the rock wool fiber board, making it not easy to deform and break during use and extending its service life.

[0025] A vibrating transportation mechanism 8 is arranged below the feeding bin 2. The conveyor belt group 11 is located on one side of the vibrating transportation mechanism 8. The vibrating transportation mechanism 8 includes an installation cover 81. Wings are arranged on both sides of the installation cover 81. A second spring 85 is arranged between the wings and the base frame 1. A plurality of transportation rollers 82 are arranged on the installation cover 81. A belt 83 is sleeved on the transportation rollers 82. A servo motor three 84 is fixedly arranged on the installation cover 81. The output end of the servo motor three 84 penetrates through the installation cover 81 and is fixedly connected to one of the transportation rollers 82. Two vibrating motors 86 are symmetrically and fixedly arranged at the bottom of the installation cover 81. After the vibrating motors 86 are started, the installation cover 81 vibrates at a high frequency under the buffering of the second spring 85, making the rock wool fiber evenly distributed and eliminating the problem of uneven local density; the servo motor three 84 drives the transportation rollers 82 and the belt 83 to smoothly transport the rock wool fiber to the conveyor belt group 11.

[0026] A negative pressure hood 91 is mounted on the base frame 1. A brush roller 9 is rotatably mounted on the negative pressure hood 91. A negative pressure tube 92 is mounted on the negative pressure hood 91. An electric telescopic rod is mounted on the base frame 1. Another bracket is mounted on the base frame 1. The negative pressure hood 91 is connected to the other bracket via the electric telescopic rod, allowing precise adjustment of the vertical position of the negative pressure hood 91. A brush motor 93 is mounted on the negative pressure hood 91. The output end of the brush motor 93 passes through the negative pressure hood 91 and connects to the brush roller 9. With the continuous operation of the brush roller 9, the floating cotton attached to the surface of the rock wool fiberboard is efficiently swept up and suspended. Simultaneously, the negative pressure tube 92, which is mounted on the negative pressure hood 91, is activated synchronously. With its powerful suction, it quickly draws the raised floating cotton away from the production area, effectively preventing the floating cotton from polluting the workshop environment and the residual floating cotton from affecting the surface flatness and quality of the rock wool fiberboard.

[0027] A production process of rock wool fiberboard, the process flow is as follows: S1: Evenly feed the block or compressed rock wool fiber raw materials into the feeding port of the de-wool machine, and use mechanical force to tear and hit the raw materials to decompose them into loose fiber bundles, thereby breaking the physical entanglement between the fibers and forming loose fiber clusters. It can also preliminarily disperse impurities (such as unmelted slag particles) and improve the purity of the fiber; S2: The unraveled fibers are further combed into a uniform fiber web through a carding machine to remove residual impurities, adjust the fiber direction, and improve the longitudinal strength of the rock wool fiberboard; S3: The carded fiber web is broken up and broken into single fibers, which are then fed into a cyclone through a pipe. The adhesive is sprayed from a nozzle by a high-pressure pump to form droplets, which fully contact the high-speed rotating fibers in the cyclone and are transported out at the same time. The turbulent airflow in the cyclone maximizes the probability of collision between the fibers and the adhesive droplets, ensuring that the adhesive evenly coats the fiber surface. S4: The rock wool fibers mixed with the binder enter the paving bin 2 through the corrugated pipe 10. Specifically, the rock wool fibers enter the bin through the movable block 23 at the feed port 21 at the top of the paving bin 2. S5: Drive the bellows 10 to reciprocate through the movable block 23, so that the rock wool fibers are laid on the vibrating transport mechanism 8. Ensure the uniform distribution of the rock wool fibers through the vibration of the vibrating transport mechanism 8. The specific process is that the servo motor 1 drives the lead screw 232 to rotate forward and backward. The movable block 23 threadedly connected to the lead screw 232 slides smoothly back and forth under the guidance of the slide bar 233. The uniform laying of the rock wool fibers on the belt 83 is realized through the reciprocating motion. When the movable block 23 moves, the gear 43 installed on it meshes with the rack 44 at the feed port 21, driving the rotating ring 42 to rotate. The scraping rod 45 inside the rotating ring 42 closely adheres to the inner wall of the connecting pipe 41, effectively scraping off the attached fibers during the rotation process, avoiding the blockage of the connecting pipe 41 caused by fiber accumulation, and ensuring that the feed channel always remains unobstructed. During the feeding process, the vibrating transport mechanism 8 starts to operate. The wing plates on both sides of the installation cover 81 are flexibly connected to the base frame 1 through the second spring 85. When the vibration motor 86 is started, the installation cover 81 generates high-frequency vibration under the buffering action of the spring, making the rock wool fibers evenly distributed during transportation and effectively eliminating the problem of uneven local density. At the same time, the servo motor 3 outputs power, passes through the installation cover 81 to drive one of the transport rollers 82 to rotate, and multiple transport rollers 82 are linked through the belt 83 to smoothly transport the rock wool fibers to the conveyor belt group 11 located on one side of the vibrating transport mechanism 8, laying a foundation for subsequent processing; S6: The evenly distributed rock wool fibers are transported to the conveyor belt assembly 11, where they are pressurized and shaped by the gradually descending pre-pressing roller 5. Simultaneously, the needles 61 on the pre-pressing roller 5 puncture the rock wool fibers during the pressurization and shaping process. Specifically, the bevel gear 52 at the output end of servo motor 2 53 engages with the bevel gear 52 on the hollow shaft 54. When servo motor 2 53 operates, power is transmitted via the bevel gear 52 to the hollow shaft 54, which in turn drives the pre-pressing roller 5 mounted on the hollow shaft 54 to rotate. Multiple pre-pressing rollers 5 arranged in descending heights provide progressive initial compaction of the rock wool fibers. The needling mechanism 6 on the pre-pressing roller 5 works in conjunction with the cam 7. The needles 61 are arranged in a circular array and slide on the pre-pressing roller 5. The roller 62 at one end of the needles 61 is in close contact with the surface of the cam 7 fixed to the crossbar 71 of the pre-pressing cover 3. A spring 63 between the needles 61 and the inner wall of the pre-pressing roller 5 provides a reset force. During the rotation of the pre-pressing roller 5, the roller 62 rolls along the profile of the cam 7. When passing the raised portion of the cam 7, the needle 61 overcomes the elastic force of the spring 63 and extends out of the surface of the pre-pressing roller 5 to pierce the rock wool fiber. After the roller 62 leaves the raised portion, the spring 63 pulls the needle 61 back. This periodic action not only completes the needling process of the rock wool fiber and enhances the structural strength and stability of the rock wool fiberboard, but also ensures that the pre-pressing rollers 5 can be close together, so that the rock wool fiberboard can be continuously stressed and ensure that the rock wool fibers are fully squeezed at every point during the initial compaction process, reducing the problem of insufficient local compaction due to excessive spacing, thereby improving the overall density uniformity of the rock wool fiberboard and effectively preventing the fibers from being entangled on the needles 61, ensuring the continuity and efficiency of production. S7: The rock wool fiberboard that has completed needle punching enters the negative pressure cover 91, and the floating cotton on its surface is cleaned by the brush roller 9. The specific process is that the conveyor belt group 11 delivers the rock wool fiber to the pre-pressing cover 3 for key pre-pressing and needle punching treatment. After the pre-pressing step is completed, the conveyor belt group 11 transports the rock wool fiberboard to the bottom of the brush roller 9, and the brush roller 9 is driven to rotate by the driving part on the negative pressure cover 91. Under the continuous operation of the brush roller 9, the floating cotton attached to the surface of the rock wool fiberboard is efficiently swept up to form a suspended state. At the same time, the negative pressure pipe 92 provided on the negative pressure cover 91 is started synchronously, and with its strong suction force, the raised floating cotton is quickly drawn out of the production area, effectively avoiding the pollution of the workshop environment caused by the floating cotton, and the problem of the surface flatness and quality of the rock wool fiberboard affected by the residual floating cotton; S8: hot pressing and curing the pre-pressed and cleaned rock wool fiberboard to obtain a high-density rock wool fiberboard; S9: Cutting the rock wool fibers of the high-density rock wool fiberboard obtained after hot pressing and curing.

[0028] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent for the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention.

Claims

1. A production device for rock wool fiber boards, comprising a base frame (1), wherein a conveyor belt group (11) is arranged on the base frame (1), and it is characterized in that: A material laying bin (2) is arranged on the base frame (1), a vibration transportation mechanism (8) is arranged below the material laying bin (2), and a pre-pressing cover (3) is arranged on the base frame (1); It further includes: Pre-pressing rollers (5), there are multiple pre-pressing rollers (5), the pre-pressing rollers (5) are rotatably arranged on the pre-pressing cover (3), and the heights of the multiple pre-pressing rollers (5) are connected in a decreasing form; Cams (7), the cams (7) are fixedly arranged on the pre-pressing cover (3), and the pre-pressing rollers (5) are sleeved on the cams (7); Needling mechanisms (6), the needling mechanisms (6) are arranged on the pre-pressing rollers (5), and through the cooperation of the needling mechanisms (6) and the cams (7), when the needling mechanisms (6) contact the rock wool fibers, they needle the rock wool fibers.

2. The production equipment of a rock wool fiber board according to claim 1, characterized in that: Both ends of the pre-pressing roller (5) are provided with hollow shafts (54), the pre-pressing roller (5) is rotatably arranged on the pre-pressing cover (3) through the hollow shafts (54), synchronous wheels are arranged on the hollow shafts (54), a synchronous belt (51) is connected between adjacent hollow shafts (54) through the synchronous wheels, a servo motor two (53) is arranged on the pre-pressing cover (3), and bevel gears (52) are arranged on the output end of the servo motor two (53) and one of the hollow shafts (54), and the two bevel gears (52) are meshed with each other.

3. The production equipment of a rock wool fiber board according to claim 2, characterized in that: A cross bar (71) is fixedly arranged on the pre-pressing cover (3), the hollow shaft (54) is sleeved on the cross bar (71), and the cam (7) is fixedly arranged on the cross bar (71).

4. The production equipment of a rock wool fiber board according to claim 1, characterized in that: The needling mechanism (6) includes multiple needle bars (61), a sliding sleeve (64) is arranged on the inner wall of the pre-pressing roller (5), the needle bars (61) are arranged in an annular array and are slidably arranged on the pre-pressing roller (5) through the sliding sleeve (64), a first spring (63) is arranged between the needle bars (61) and the sliding sleeve (64), the first spring (63) is sleeved on the needle bars (61), one end of the needle bar (61) is provided with a roller (62), and the roller (62) is rotatably arranged on the surface of the cam (7).

5. The production equipment of a rock wool fiber board according to claim 1, characterized in that: A feed inlet (21) is arranged on the material laying bin (2), a movable block (23) is slidably arranged in the feed inlet (21), open-mouthed bellows (22) are arranged between both sides of the movable block (23) and the inner wall of the feed inlet (21), a lead screw (232) is rotatably arranged on the feed inlet (21), a slide bar (233) is fixedly arranged on one side of the lead screw (232), the movable block (23) is threadedly connected with the lead screw (232), the movable block (23) is slidably arranged on the slide bar (233), a servo motor one (24) is arranged on the feed inlet (21), the output end of the servo motor one (24) is fixedly connected with the lead screw (232), a shielding plate (231) is arranged on the movable block (23), the lower end of the open-mouthed bellows (22) is connected with the shielding plate (231), and a cleaning mechanism (4) is arranged on the movable block (23).

6. The production equipment of a rock wool fiber board according to claim 5, characterized in that: The cleaning mechanism (4) includes a connecting tube (41), the connecting tube (41) is provided on the movable block (23), a rotating ring (42) is rotatably provided on the shielding plate (231), a tooth protrusion (421) is provided on the surface of the rotating ring (42), a gear (43) is rotatably provided on the movable block (23), the rotating ring (42) is connected to the gear (43) through the tooth protrusion (421), a rack (44) is provided on the feed port (21), the rack (44) is engaged with the gear (43), the rack (44) is provided in the open accordion cover (22), a scratching rod (45) is fixedly provided on the inner side of the rotating ring (42), and the scratching rod (45) is in contact with the inner wall of the connecting tube (41).

7. The production equipment of a rock wool fiber board according to claim 1, characterized in that: The vibrating transport mechanism (8) includes a mounting cover (81), wing plates are provided on both sides of the mounting cover (81), a second spring (85) is provided between the wing plates and the base frame (1), a plurality of transport rollers (82) are rotatably provided on the mounting cover (81), a belt (83) is sleeved on the transport rollers (82), a servo motor (84) is fixed on the mounting cover (81), an output end of the servo motor (84) passes through the mounting cover (81) and is fixedly connected to one of the transport rollers (82), and a vibration motor (86) is fixedly provided on the mounting cover (81).

8. The production equipment of a rock wool fiber board according to claim 6, characterized in that: A bracket is provided on the base frame (1), a bellows (10) is connected to the bracket, and the bellows (10) is fixedly connected to the connecting pipe (41).

9. The production equipment of a rock wool fiber board according to claim 1, characterized in that: A negative pressure cover (91) is provided on the base frame (1), a brush roller (9) is rotatably provided on the negative pressure cover (91), a brush motor (93) is provided on the negative pressure cover (91), an output end of the brush motor (93) passes through the negative pressure cover (91) and is connected to the brush roller (9), and a negative pressure pipe (92) is provided on the negative pressure cover (91).

10. A production process for rock wool fiberboard, based on the production equipment for rock wool fiberboard according to any one of claims 1 to 9, wherein the process flow is as follows: S1: Evenly feed the block or compressed rock wool fiber raw materials into the feeding port of the de-wool machine, and use mechanical force to tear and hit the raw materials to decompose them into loose fiber bundles; S2: The unraveled fibers are further combed into a uniform fiber web through a carding machine to remove residual impurities and adjust the fiber direction; S3: The carded fiber web is broken up and broken into single fibers, which are then fed into a cyclone through a pipe. The binder is sprayed from a nozzle by a high-pressure pump to form droplets, which fully contact the high-speed rotating fibers in the cyclone and are transported out at the same time; S4: The rock wool fibers mixed with the binder enter the paving bin (2) through the bellows (10); S5: The bellows (10) is driven to move back and forth by the movable block (23), so that the rock wool fibers are spread on the vibrating transport mechanism (8), and the vibration of the vibrating transport mechanism (8) ensures that the rock wool fibers are evenly distributed; S6: The evenly distributed rock wool fibers are transported onto the conveyor belt group (11), and are pressure-shaped by the gradually decreasing pre-pressing rollers (5) while the barbed needles (61) on the pre-pressing rollers (5) needling the rock wool fibers during the pressure-shaping process; S7: The needled rock wool fiber board enters the negative pressure hood (91), and the floating cotton on its surface is cleaned by the brush roller (9); S8: The pre-pressed and cleaned rock wool fiber board is hot-pressed and cured; S9: The hot-pressed and cured rock wool fiber board is cut.

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