Production line and manufacturing process of environment-friendly sound-absorbing flame-retardant polyester decorative material

Abstract

The application provides a production line and manufacturing process of environment-friendly sound-absorbing flame-retardant polyester decorative material, which comprises, in sequence according to production order, a high mixing machine, a cotton storage device, a high-position vibrating cotton bin, an electronic weight measuring machine, a high-speed carding machine, a net laying machine, a needle punching machine, an inkjet printing device, an oven, a hot-pressing and cold-pressing device, a cooling device and a slitting device. The high mixing machine comprises a base, a rotating platform, a mixing bin, a stirring mechanism and a driving mechanism for driving the stirring mechanism to work. The stirring mechanism is installed on the mixing bin, the driving mechanism is connected with the stirring mechanism, the mixing bin is installed on the rotating platform, the rotating platform is rotatably installed on the base, and the base is further provided with a turnover mechanism for driving the rotating platform to turn over to a horizontal state so that the mixing bin is switched from a vertical state to a horizontal state. The high mixing machine integrates the advantages of horizontal stirrers and vertical stirrers, can effectively improve the fiber mixing efficiency and has high mixing uniformity.

Description

Technical Field

[0001] This invention relates to the field of carpet production technology, specifically to a production line and manufacturing process for an environmentally friendly sound-absorbing and flame-retardant polyester decorative material. Background Technology

[0002] Polyester fiber sound-absorbing material, as a new type of environmentally friendly sound-absorbing material, can replace traditional sound insulation and sound-absorbing panels such as sponge, glass wool, and rock wool. Whether in direct skin contact or in the air, it does not release harmful trace elements, meeting the standards for safe use. However, the production of polyester fiber sound-absorbing panels requires opening, mixing, and weaving raw chemical fibers. To ensure uniform mixing of various fiber raw materials, the requirements for high-efficiency mixers are relatively high. However, existing high-efficiency mixers have a simple structure, cannot achieve efficient and rapid mixing, and suffer from low mixing efficiency and poor uniformity.

[0003] In view of this, the inventors of this case conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned shortcomings by providing a production line for environmentally friendly sound-absorbing and flame-retardant polyester decorative materials. The high-speed mixer integrates the advantages of horizontal and vertical mixers, effectively improving fiber mixing efficiency and achieving high mixing uniformity.

[0005] The solution adopted by this invention to solve the technical problem is: a production line for environmentally friendly sound-absorbing and flame-retardant polyester decorative materials, comprising a high-speed mixer, a cotton storage device, a high-position vibrating cotton silo, an electronic weighing machine, a high-speed carding machine, a web laying machine, a needle punching machine, an inkjet printing device, an oven, a hot and cold pressing device, a cooling device, and a slitting device arranged sequentially in the production sequence. The high-speed mixer includes a base, a rotating platform, a mixing silo, a stirring mechanism, and a driving mechanism for driving the stirring mechanism. The stirring mechanism is installed on the mixing silo, and the driving mechanism is connected to the stirring mechanism. The mixing silo is installed on the rotating platform, and the rotating platform is rotatably installed on the base. The base is provided with a flipping mechanism for driving the rotating platform to flip to a horizontal state so that the mixing silo changes from a vertical state to a horizontal state.

[0006] Furthermore, in order to drive the rotating platform to stand upright or be placed horizontally, thereby switching the mixing chamber to a vertical or horizontal state; the tilting mechanism is a hydraulic cylinder, which is mounted on the base, and the cylinder rod is hinged to the mixing chamber. The top of the mixing chamber is provided with a discharge port, and the bottom of the mixing chamber is provided with a discharge port. The stirring mechanism includes a stirring shaft rotatably installed in the mixing chamber and a stirring gear coaxially and fixedly connected to the stirring shaft. The driving mechanism is driven by the stirring gear to drive the stirring shaft to rotate.

[0007] Furthermore, in order to drive the stirring mechanism to rotate and perform preliminary mixing and loosening of the fibers, the driving mechanism includes a drive motor, a drive gear, a first gear, a second gear, a third gear, an intermediate gear, and an end gear. The drive motor is mounted on the base, the drive gear is coaxially fixedly mounted on the motor shaft of the drive motor, the first gear is rotatably mounted in the base and meshes with the drive gear, the intermediate gear is rotatably mounted on the base and coaxially fixedly connected with the first gear, the second gear is rotatably mounted in the base and meshes with the first gear, the third gear is rotatably mounted in the tilting platform, and when the tilting platform rotates to a horizontal state, the third gear meshes with the second gear, and the end gear is rotatably mounted on the tilting platform and coaxially fixedly connected with the third gear. When the tilting platform rotates to a vertical state, the end gear simultaneously meshes with the intermediate gear and the stirring gear, thereby transmitting the rotation of the intermediate gear to the stirring gear to drive the stirring shaft to rotate.

[0008] Furthermore, to complete the unpacking process, the base is equipped with a support frame, on which a hopper frame is rotatably mounted. The hopper frame has a feeding hopper, and the feeding hopper contains an unpacking mechanism. The unpacking mechanism includes a hanging rod and a crushing blade, with several hanging rods and crushing blades. The hanging rod is inclined inside the feeding hopper to insert into the plastic bag and fix it in place. A rotating shaft is located on the lower side of the feeding hopper, and the crushing blade is radially positioned on the rotating shaft to cut the plastic bag. The feeding hopper is equipped with an unpacking motor to drive the rotating shaft. The bottom of the feeding hopper is also equipped with an isolation net to prevent the plastic bag from falling into the mixing chamber.

[0009] Furthermore, in order to further mix and loosen the fibers, the cotton storage device includes a cotton storage box, with an inlet on the upper side and an outlet on the lower side. An output curtain is provided inside the outlet, and a first feeding curtain group and a second feeding curtain group are provided inside the cotton storage box above the output curtain.

[0010] Furthermore, in order to provide a variable volume cotton storage box structure and prevent cotton blockage due to excessive load on the first conveyor curtain group, the cotton storage box is also equipped with a switching structure for switching the output of fibers from the first conveyor curtain group or from the first conveyor curtain group and the second conveyor curtain group simultaneously. The switching structure includes a baffle, the upper end of which is rotatably mounted on the upper side wall of the cotton storage box. The baffle is provided with a pull rope for pulling the baffle to be pressed against the upper side wall of the cotton storage box, and the other end of the pull rope extends out of the cotton storage box.

[0011] Furthermore, in order to feed the fibers from the high-speed mixer into the cotton storage box, the feed inlet of the cotton storage box is connected to the high-speed mixer via a telescopic air duct. The telescopic air duct is provided with a first joint, a second joint, and a third joint, which are distributed in a Y-shape. The first joint is connected to the high-speed mixer, the second joint is connected to a fan, and the third joint is connected to the feed inlet. The first joint and the second joint are adjacent to each other so that air can be blown into the telescopic air duct by the fan to drive the fibers from the high-speed mixer to flow into the cotton storage box.

[0012] Furthermore, in order to print patterns on the fiber mesh and create negative pressure to accelerate ink penetration while simultaneously adsorbing the blank blanket through negative pressure to prevent the blank blanket from moving during printing and affecting the inkjet printing effect, the inkjet printing device includes a printhead, a moving mechanism for driving the printhead to move on the blank blanket to spray ink, a negative pressure mechanism for creating negative pressure below the blank blanket to accelerate ink penetration, and a conveying mechanism for conveying the blank blanket. The conveying mechanism is mounted on the frame, the negative pressure mechanism is mounted on the conveying mechanism, and the moving mechanism is mounted on the frame and located above the negative pressure mechanism. The moving mechanism includes a longitudinal moving component, a transverse moving component, and a lifting component. The longitudinal moving component is mounted on the frame, the transverse moving component is mounted on the longitudinal moving component, the lifting component is mounted on the transverse moving component, and the printhead is mounted on the lifting component. The conveying mechanism includes a conveyor motor, a driving pulley, a driven pulley, and a conveyor belt. The driving pulley is drivenly connected to the conveyor motor, and the driven pulley is drivenly connected to the driving pulley through the conveyor belt. The negative pressure mechanism is mounted on the conveyor belt.

[0013] Furthermore, in order to create negative pressure and accelerate ink penetration, the negative pressure mechanism includes several negative pressure plates evenly arranged on the conveyor belt. The upper side of the negative pressure plate is provided with several negative pressure holes and negative pressure grooves for connecting two adjacent negative pressure holes. The negative pressure plate is also provided with a negative pressure channel communicating with the negative pressure holes. Negative pressure connectors communicating with the negative pressure channels are provided on both sides of the negative pressure plate. Vacuum connectors for connecting with the negative pressure connectors are provided on both sides of the conveyor belt on the frame. The vacuum connectors are connected to a vacuum pump.

[0014] The second objective of this invention is to address the above-mentioned shortcomings by providing a manufacturing process for the efficient production of environmentally friendly sound-absorbing and flame-retardant polyester decorative materials.

[0015] The second solution adopted by this invention to solve the technical problem is: a manufacturing process for an environmentally friendly sound-absorbing and flame-retardant polyester decorative material, comprising the following steps:

[0016] (1) Preparation of bicomponent composite fiber: A layer of low-temperature polyester material is laminated on the outer layer of high-temperature polyester fiber to form bicomponent composite fiber;

[0017] (2) Mixing and opening: 50% flame-retardant polyester fiber and 50% bicomponent composite fiber are fed into the high-speed mixer and cotton storage device in a certain proportion for mixing and opening;

[0018] (3) Carding: The mixed fibers obtained in step (2) are sequentially fed into a high-level vibrating cotton bin, an electronic weighing machine and a high-speed carding machine to card into a web;

[0019] (4) Laying the web: The fiber web obtained in step (3) is laid and stacked to the set number of layers using a web laying machine;

[0020] (5) Needling: The fiber web laid in step (4) is repeatedly needled up and down by a pre-needling machine, and then needled at low speed and low density by a low-frequency needle punching machine. The needles are repeated twice on both the top and bottom surfaces to obtain a blank blanket.

[0021] (6) Printing: The blank blanket is pulled to the bottom of the inkjet printing device through the fabric storage rack to print the pattern. During printing, a negative pressure is formed on the underside of the blank blanket to improve the printing effect.

[0022] (7) High temperature color fixing: The patterned blank blanket is pulled into the oven by a tenter frame for high temperature color fixing. At the same time, the low temperature polyester material on the outer surface of the two-component composite fiber will completely melt in the high temperature oven, so that the fibers adhere to each other and the blank blanket is reinforced.

[0023] (8) Hot pressing and shaping: After exiting the oven, the blank blanket is introduced into the hot press for preheating and pressing, then the blank blanket is introduced into the cold press for cold pressing, and finally sent to the air cooler for cooling.

[0024] (9) Slitting: Slice and stack the cooled blank blanket.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] (1) This invention improves the high-speed mixer so that the mixing chamber can be switched between vertical and horizontal. When feeding, the mixing chamber is in a vertical state. At this time, the fiber bag is put into the mixing chamber. The stirring efficiency is high and the kinetic energy consumption is small, but the uniformity is poor. When the mixing reaches a certain degree, the driving cylinder flips the rotating platform to a horizontal position. At this time, the mixing chamber is in a horizontal state, which can further improve the mixing uniformity. In addition, the discharge will be cleaner and more thorough.

[0027] (2) The present invention improves the structure of the cotton storage box. Existing cotton storage boxes are all single output structures. When the feed amount is large, the discharge pressure is large, which can easily cause cotton blockage. The present invention provides a structure with variable output. When the feed amount is small, it maintains a single output structure. When the output load is large, it can be switched to a dual output structure. The switching structure is simple and convenient to operate.

[0028] (3) In the inkjet process, the present invention forms a negative pressure under the blank blanket to draw the blank blanket, thereby accelerating the penetration speed of ink during inkjet printing and improving the inkjet effect. In addition, the negative pressure adsorption of the blank blanket makes it less prone to shaking, thus effectively ensuring the production of carpets with clear patterns that are not easy to fade. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 Schematic diagram of a high-speed mixer Figure 1 ;

[0032] Figure 3 Schematic diagram of a high-speed mixer Figure 2 ;

[0033] Figure 4 Schematic diagram of a high-speed mixer Figure 3 ;

[0034] Figure 5 This is a partial sectional view of the drive mechanism;

[0035] Figure 6 This is a schematic diagram of the feed hopper structure;

[0036] Figure 7 This is a schematic diagram of the cotton storage device.

[0037] Figure 8 This is a schematic diagram of an inkjet printing device.

[0038] In the diagram: High-speed mixer 1; base 11; rotating platform 12; mixing chamber 13; discharge port 131; stirring gear 14; hydraulic cylinder 15; drive mechanism 16; drive motor 161; drive gear 162; first gear 163; second gear 164; third gear 165; intermediate gear 166; end gear 167; feed rack 17; feed hopper 18; hanging rod 181; crushing blade 182; rotating shaft 183; unpacking motor 184; isolation net 185; discharge port 19; cotton storage device 2; cotton storage box 21; feed port 211; discharge port 212; first feeding curtain group 22; second feeding curtain group 23; baffle 24; pull rope 25; Output curtain 26; high-speed combing machine 3; web laying machine 4; needle punching machine 5; inkjet printing device 6; negative pressure plate 61; vacuum connector 611; printhead 62; moving mechanism 63; conveying mechanism 64; drying oven 7; hot and cold pressing device 8; cooling device 9; slitting device 10. Detailed Implementation

[0039] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0040] Example 1: As Figure 1-8 As shown, this embodiment provides a production line for environmentally friendly sound-absorbing and flame-retardant polyester decorative materials, including a high-speed mixer 1, a cotton storage device 2, a high-position vibrating cotton silo, an electronic weighing machine, a high-speed carding machine 3, a web laying machine 4, a needle punching machine 5, an inkjet printing device 6, an oven 7, a hot and cold pressing device 8, a cooling device 9, and a slitting device 10 arranged sequentially in the production sequence. The high-speed mixer 1 includes a base 11, a rotating platform 12, a mixing chamber 13, a stirring mechanism, and a drive mechanism 16 for driving the stirring mechanism. The stirring mechanism is installed on the mixing chamber 13, and the drive mechanism 16 is connected to the stirring mechanism. The mixing chamber 13 is installed on the rotating platform 12, and the rotating platform 12 is rotatably installed on the base 11. The base 11 is also provided with a flipping mechanism for driving the rotating platform 12 to flip to a horizontal state so that the mixing chamber 13 changes from a vertical state to a horizontal state.

[0041] In this embodiment, in order to drive the rotating platform 12 to stand upright or be placed horizontally, thereby switching the mixing chamber 13 to a vertical or horizontal state; the flipping mechanism is a hydraulic cylinder 15, which is mounted on the base 11. The cylinder rod of the hydraulic cylinder 15 is hinged to the mixing chamber 13. The top of the mixing chamber 13 is provided with a discharge port 131, and the bottom of the mixing chamber 13 is provided with a discharge port 19. The stirring mechanism includes a stirring shaft rotatably mounted in the mixing chamber, stirring blades radially arranged on the stirring shaft, and a stirring gear 14 coaxially fixedly connected to the stirring shaft. The driving mechanism 16 is driven by the stirring gear 14 to drive the stirring shaft to rotate.

[0042] In this embodiment, to drive the stirring mechanism to rotate and perform preliminary mixing and loosening of the fibers, the driving mechanism 16 includes a drive motor 161, a drive gear 162, a first gear 163, a second gear 164, a third gear 165, an intermediate gear 166, and a final gear 167. The drive motor 161 is mounted on the base 11. The drive gear 162 is coaxially fixedly mounted on the motor shaft of the drive motor 161. The first gear 163 is rotatably mounted inside the base 11 and meshes with the drive gear 162. The intermediate gear 166 is rotatably mounted on the base 11 and meshes with the first gear 162. The first gear 163 is coaxially fixedly connected to the second gear 164, which is rotatably mounted in the base 11 and meshes with the first gear 163. The third gear 165 is rotatably mounted in the tilting platform. When the tilting platform is rotated to a horizontal state, the third gear 165 meshes with the second gear 164. The end gear 167 is rotatably mounted on the tilting platform and is coaxially fixedly connected with the third gear 165. When the tilting platform is rotated to a vertical state, the end gear 167 meshes with both the intermediate gear 166 and the stirring gear 14, thereby transmitting the rotation of the intermediate gear 166 to the stirring gear 14 to drive the stirring shaft to rotate.

[0043] In this embodiment, to complete the unpacking, a support frame is provided on the base 11, located beside the mixing chamber 13. A hopper frame is rotatably mounted on the support frame, and a feed hopper 18 is provided on the feed hopper frame. The feed hopper 18 flips down and is positioned just above the discharge port 131. A unpacking mechanism is provided inside the feed hopper 18. The unpacking mechanism includes a hanging rod 181 and a crushing blade 182. There are multiple hanging rods 181 and crushing blades 182. The hanging rods 181 are inclinedly arranged inside the feed hopper 18 to insert into the plastic bag and fix the plastic bag. A rotating shaft 183 is provided on the lower side of the feed hopper 18. The crushing blades 182 are radially arranged on the rotating shaft 183 to cut the plastic bag. An unpacking motor 184 is provided on the feed hopper 18 to drive the rotating shaft 183 to rotate. An isolation net 185 is also provided at the bottom of the feed hopper 18 to prevent the plastic bag from falling into the mixing chamber 13.

[0044] In this embodiment, in order to further mix and loosen the fibers, the cotton storage device 2 includes a cotton storage box 21, the upper side of the cotton storage box 21 is provided with a feed inlet 211, the lower side of the cotton storage box 21 is provided with a discharge outlet 212, the discharge outlet 212 is provided with an output curtain 26, and the cotton storage box 21 is provided with a first feeding curtain group 22 and a second feeding curtain group 23 located above the output curtain 26.

[0045] In this embodiment, in order to provide a variable volume cotton storage box 21 structure and prevent the first conveying curtain group from being overloaded and causing cotton blockage, the cotton storage box 21 is also provided with a switching structure for switching the output of fibers from the first conveying curtain group or from the first conveying curtain group and the second conveying curtain group simultaneously. The switching structure includes a baffle 24, the upper end of which is rotatably mounted on the upper side wall of the cotton storage box 21. The baffle 24 is provided with a pull rope 25 for pulling the baffle 24 to be pressed against the upper side wall of the cotton storage box 21, and the other end of the pull rope 25 extends out of the cotton storage box 21.

[0046] In this embodiment, in order to feed the fibers of the high-speed mixer 1 into the cotton storage box 21, the feed inlet 211 of the cotton storage box 21 is connected to the high-speed mixer 1 via a telescopic air duct. The telescopic air duct is provided with a first joint, a second joint, and a third joint, which are distributed in a Y-shape. The first joint is connected to the high-speed mixer 1, the second joint is connected to a fan, and the third joint is connected to the feed inlet 211. The first joint and the second joint are adjacent to each other so that air can be blown into the telescopic air duct by the fan to drive the fibers of the high-speed mixer 1 to flow into the cotton storage box 21.

[0047] In this embodiment, in order to print patterns on the fiber mesh and create negative pressure to accelerate ink penetration, the negative pressure also adsorbs the blank blanket to prevent it from moving during printing and affecting the inkjet printing effect. The inkjet printing device 6 includes a printhead 62, a moving mechanism 63 for driving the printhead 62 to move on the blank blanket to spray ink, a negative pressure mechanism for creating negative pressure below the blank blanket to accelerate ink penetration, and a conveying mechanism 64 for conveying the blank blanket. The conveying mechanism 64 is mounted on the frame, the negative pressure mechanism is mounted on the conveying mechanism 64, and the moving mechanism 63 is mounted on the frame. Located above the negative pressure mechanism, the moving mechanism 63 includes a longitudinal moving component, a transverse moving component, and a lifting component. The longitudinal moving component is mounted on the frame, the transverse moving component is mounted on the longitudinal moving component, and the lifting component is mounted on the transverse moving component. The nozzle 62 is mounted on the lifting component. The conveying mechanism 64 includes a conveying motor, a driving pulley, a driven pulley, and a conveyor belt. The driving pulley is driven by the conveying motor, and the driven pulley is driven by the driving pulley through the conveyor belt. The negative pressure mechanism is mounted on the conveyor belt.

[0048] In this embodiment, in order to create negative pressure and accelerate ink penetration, the negative pressure mechanism includes a plurality of negative pressure plates 61 evenly arranged on the conveyor belt. The upper side of the negative pressure plate 61 is provided with a plurality of negative pressure holes and a negative pressure groove for connecting two adjacent negative pressure holes. The negative pressure plate 61 is also provided with a negative pressure channel communicating with the negative pressure holes. Negative pressure connectors communicating with the negative pressure channels are provided on both sides of the negative pressure plate 61. Vacuum connectors 611 for connecting with the negative pressure connectors are provided on both sides of the conveyor belt on the frame. The vacuum connectors 611 are connected to a vacuum pump.

[0049] Example 2: A manufacturing process for an environmentally friendly sound-absorbing and flame-retardant polyester decorative material, comprising the following steps:

[0050] (1) Preparation of bicomponent composite fiber: A layer of low-temperature polyester material is laminated on the outer layer of high-temperature polyester fiber to form bicomponent composite fiber;

[0051] (2) Mixing and opening: 50% flame-retardant polyester fiber and 50% bicomponent composite fiber are fed into the high-speed mixer 1 and the cotton storage device 2 in a certain proportion for mixing and opening;

[0052] (3) Carding: The mixed fibers obtained in step (2) are sequentially fed into the high-position vibrating cotton bin, the electronic weighing machine and the high-speed carding machine 3 to card into a web;

[0053] (4) Laying the web: The fiber web obtained in step (3) is laid and stacked to the set number of layers using a web laying machine 4;

[0054] (5) Needling: The fiber web laid in step (4) is repeatedly needled up and down by the pre-needling machine 5, and then needled at low speed and low density by the low-frequency needle punching machine 5. The needles are repeated twice on both the top and bottom to obtain the blank blanket.

[0055] (6) Printing: The blank blanket is pulled to the bottom of the inkjet printing device 6 through the fabric storage rack to print the pattern. During printing, a negative pressure is formed on the underside of the blank blanket to improve the printing effect.

[0056] (7) High temperature color fixing: The patterned blank blanket is pulled by a tenter frame and sent into the oven 7 for high temperature color fixing. At the same time, in the high temperature oven 7, the low temperature polyester material on the outer surface of the two-component composite fiber will completely melt, so that the fibers adhere to each other and the blank blanket is reinforced.

[0057] (8) Hot pressing and shaping: After exiting the oven 7, the blank blanket is introduced into the hot press for preheating and pressing, then the blank blanket is introduced into the cold press for cold pressing, and finally sent to the air cooler for cooling.

[0058] (9) Slitting: Slice and stack the cooled blank blanket.

[0059] This invention improves the high-speed mixer 1, allowing the mixing chamber 13 to switch between vertical and horizontal configurations. During feeding, the mixing chamber 13 is vertical, and fiber bales are placed inside, resulting in high mixing efficiency and low energy consumption, but poor uniformity. Once mixing reaches a certain level, the driving cylinder 15 flips the rotating platform 12 to a horizontal position, transforming the mixing chamber 13 into a horizontal state, further improving mixing uniformity and ensuring cleaner and more thorough discharge. Furthermore, this invention improves the structure of the cotton storage box 21. Existing cotton storage boxes 21 are single-output structures, which are problematic when the feed volume is large. High output pressure can easily cause cotton clogging. This invention provides a variable output structure. When the feed rate is low, it maintains a single output structure. When the output load is high, it can switch to a dual output structure. The switching structure is simple and easy to operate. Moreover, the cotton layer of the dual output is thicker, resulting in better product quality. In addition, during inkjet printing, this invention creates a negative pressure under the blank to suck up the blank, accelerating the ink penetration speed during inkjet printing, thereby improving the inkjet printing effect. Furthermore, the negative pressure adsorption of the blank prevents it from shaking, thus effectively ensuring the production of carpets with clear patterns that are not easy to fade.

[0060] The above description is merely an embodiment of the present invention and does not limit the scope of patent protection of the invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A production line for environmentally friendly sound-absorbing and flame-retardant polyester decorative materials, characterized in that: The system includes a high-speed mixer, a cotton storage device, a high-position vibrating cotton silo, an electronic weighing machine, a high-speed carding machine, a web laying machine, a needle punching machine, an inkjet printing device, an oven, a hot and cold pressing device, a cooling device, and a slitting device, arranged sequentially in the production sequence. The high-speed mixer includes a base, a rotating platform, a mixing silo, a stirring mechanism, and a drive mechanism for driving the stirring mechanism. The stirring mechanism is installed on the mixing silo, and the drive mechanism is connected to the stirring mechanism. The mixing silo is installed on the rotating platform, and the rotating platform is rotatably installed on the base. The base is provided with a flipping mechanism for driving the rotating platform to flip to a horizontal state so that the mixing silo changes from a vertical state to a horizontal state. The tilting mechanism is a hydraulic cylinder, which is mounted on the base. The cylinder rod is hinged to the mixing chamber. The top of the mixing chamber has a discharge port, and the bottom of the mixing chamber has a discharge port. The stirring mechanism includes a stirring shaft rotatably mounted in the mixing chamber and a stirring gear coaxially and fixedly connected to the stirring shaft. The driving mechanism is driven by the stirring gear to drive the stirring shaft to rotate. The drive mechanism includes a drive motor, a drive gear, a first gear, a second gear, a third gear, an intermediate gear, and a final gear. The drive motor is mounted on a base. The drive gear is coaxially fixedly mounted on the motor shaft of the drive motor. The first gear is rotatably mounted inside the base and meshes with the drive gear. The intermediate gear is rotatably mounted on the base and coaxially fixedly connected with the first gear. The second gear is rotatably mounted inside the base and meshes with the first gear. The third gear is rotatably mounted inside the tilting platform. When the tilting platform rotates to a horizontal position, the third gear meshes with the second gear. The final gear is rotatably mounted on the tilting platform and coaxially fixedly connected with the third gear. When the tilting platform rotates to a vertical position, the final gear simultaneously meshes with the intermediate gear and the stirring gear, thereby transmitting the rotation of the intermediate gear to the stirring gear to drive the stirring shaft to rotate.

2. The production line for environmentally friendly sound-absorbing and flame-retardant polyester decorative materials as described in claim 1, characterized in that: The base is equipped with a support frame, on which a hopper frame is rotatably mounted. The hopper frame is equipped with a feeding hopper, and the feeding hopper contains a depackaging mechanism. The depackaging mechanism includes a hanging rod and a crushing blade, and there are several hanging rods and crushing blades. The hanging rods are inclinedly arranged inside the feeding hopper to insert into the plastic bags and fix them in place. A rotating shaft is provided on the lower side of the feeding hopper, and the crushing blades are radially arranged on the rotating shaft to cut the plastic bags. The feeding hopper is equipped with a depackaging motor for driving the rotating shaft to rotate. The bottom of the feeding hopper is also equipped with an isolation net to prevent the plastic bags from falling into the mixing chamber.

3. The production line for environmentally friendly sound-absorbing and flame-retardant polyester decorative materials as described in claim 1, characterized in that: The cotton storage device includes a cotton storage box, with an inlet on the upper side and an outlet on the lower side. An output curtain is provided inside the outlet, and a first feeding curtain group and a second feeding curtain group are provided inside the cotton storage box, located above the output curtain.

4. The production line for environmentally friendly sound-absorbing and flame-retardant polyester decorative materials as described in claim 3, characterized in that: The cotton storage box is also equipped with a switching structure for switching the output of fibers from the first conveying curtain group or from the first conveying curtain group and the second conveying curtain group simultaneously. The switching structure includes a baffle, the upper end of which is rotatably mounted on the upper side wall of the cotton storage box. The baffle is provided with a pull rope for pulling the baffle to be close to the upper side wall of the cotton storage box, and the other end of the pull rope extends out of the cotton storage box.

5. The production line for environmentally friendly sound-absorbing and flame-retardant polyester decorative materials as described in claim 3, characterized in that: The inlet of the cotton storage box is connected to the high-speed mixer via a telescopic air duct. The telescopic air duct is equipped with a first joint, a second joint, and a third joint, which are distributed in a Y-shape. The first joint is connected to the high-speed mixer, the second joint is connected to a fan, and the third joint is connected to the inlet. The first joint and the second joint are adjacent to each other so that air can be blown into the telescopic air duct by the fan to drive the fibers of the high-speed mixer to flow to the cotton storage box.

6. The production line for environmentally friendly sound-absorbing and flame-retardant polyester decorative materials as described in claim 1, characterized in that: The inkjet printing device includes a printhead, a moving mechanism for driving the printhead to move and spray ink on a blank blanket, a negative pressure mechanism for creating negative pressure below the blank blanket to accelerate ink penetration into the blank blanket, and a conveying mechanism for conveying the blank blanket. The conveying mechanism is mounted on a frame, the negative pressure mechanism is mounted on the conveying mechanism, and the moving mechanism is mounted on the frame and located above the negative pressure mechanism. The moving mechanism includes a longitudinal moving component, a transverse moving component, and a lifting component. The longitudinal moving component is mounted on the frame, the transverse moving component is mounted on the longitudinal moving component, the lifting component is mounted on the transverse moving component, and the printhead is mounted on the lifting component. The conveying mechanism includes a conveyor motor, a driving pulley, a driven pulley, and a conveyor belt. The driving pulley is driven by the conveyor motor, and the driven pulley is driven by the driving pulley through the conveyor belt. The negative pressure mechanism is mounted on the conveyor belt.

7. The production line for environmentally friendly sound-absorbing and flame-retardant polyester decorative materials as described in claim 6, characterized in that: The negative pressure mechanism includes several negative pressure plates evenly arranged on the conveyor belt. The upper side of the negative pressure plate is provided with several negative pressure holes and a negative pressure groove for connecting two adjacent negative pressure holes. The negative pressure plate is also provided with a negative pressure channel communicating with the negative pressure holes. Negative pressure connectors communicating with the negative pressure channels are provided on both sides of the negative pressure plate. Vacuum connectors for connecting with the negative pressure connectors are provided on both sides of the conveyor belt on the frame. The vacuum connectors are connected to a vacuum pump.

8. A process for manufacturing environmentally friendly sound-absorbing and flame-retardant polyester decorative materials using the environmentally friendly sound-absorbing and flame-retardant polyester decorative material production line according to any one of claims 1-7, characterized in that: Includes the following steps: (1) Preparation of bicomponent composite fiber: A layer of low-temperature polyester material is laminated on the outer layer of high-temperature polyester fiber to form bicomponent composite fiber; (2) Mixing and opening: 50% flame-retardant polyester fiber and 50% bicomponent composite fiber are fed into the high-speed mixer and cotton storage device in a certain proportion for mixing and opening; (3) Carding: The mixed fibers obtained in step (2) are sequentially fed into a high-level vibrating cotton bin, an electronic weighing machine and a high-speed carding machine to card into a web; (4) Laying the web: The fiber web obtained in step (3) is laid and stacked to the set number of layers using a web laying machine; (5) Needling: The fiber web laid in step (4) is repeatedly needled up and down by a pre-needling machine, and then needled at low speed and low density by a low-frequency needle punching machine. The needles are repeated twice on both the top and bottom surfaces to obtain a blank blanket. (6) Printing: The blank blanket is pulled to the bottom of the inkjet printing device through the fabric storage rack to print the pattern. During printing, a negative pressure is formed on the underside of the blank blanket to improve the printing effect. (7) High temperature color fixing: The patterned blank blanket is pulled into the oven by a tenter frame for high temperature color fixing. At the same time, the low temperature polyester material on the outer surface of the two-component composite fiber will completely melt in the high temperature oven, so that the fibers adhere to each other and the blank blanket is reinforced. (8) Hot pressing and shaping: After exiting the oven, the blank blanket is introduced into the hot press for preheating and pressing, then the blank blanket is introduced into the cold press for cold pressing, and finally sent to the air cooler for cooling. (9) Slitting: Slice and stack the cooled blank blanket.

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