A blowing machine for automobile sound-absorbing cotton production

Abstract

The application discloses a cotton blowing machine for automobile sound-absorbing cotton production and relates to the technical field of automobile sound-absorbing cotton production. The cotton blowing machine for automobile sound-absorbing cotton production comprises a placing rack, and a processing mechanism is fixedly connected to the top of the placing rack. The cotton blowing machine for automobile sound-absorbing cotton production drives the cotton blowing port to move in multiple positions in the arrangement box through the reciprocating movement of the electric sliding block along the second sliding rail, realizes the uniform spreading of sound-absorbing cotton raw materials, and simultaneously, the arrangement box continuously vibrates under the swing of the flat plate, cooperates with the intermittent stirring of the stirring plate and the stirring block, forces the internal gap of the sound-absorbing cotton to be reduced, significantly improves the uniformity of the density of finished products, the air vents at the bottom of the arrangement box allow air flow to be discharged, avoids the accumulation of air pressure to cause poor cotton blowing, synchronously scrapes off the sound-absorbing cotton fibers remaining at the air vents when the stirring plate rotates, reduces the blockage of the holes, guarantees the continuous production stability, the cotton blowing part is elastically connected with the arrangement box through a spring, and the second support is rotationally connected with the electric sliding block.

Description

Technical Field

[0001] This invention relates to the field of automotive sound-absorbing cotton production technology, specifically a cotton blowing machine for automotive sound-absorbing cotton production. Background Technology

[0002] As the automotive manufacturing industry continues to prioritize cabin quietness and ride comfort, sound-absorbing materials are increasingly being used in automotive noise reduction systems. Automotive sound-absorbing cotton, a functional material commonly used in areas such as vehicle interior walls, engine compartments, and chassis, possesses excellent sound insulation, vibration damping, and heat insulation properties, making it a key component in achieving lightweight design and environmentally friendly requirements in modern automobiles. To meet the demands of mass production and standardized manufacturing, the manufacturing technology of automotive sound-absorbing cotton is constantly evolving, with the "blown cotton process" becoming one of the mainstream forming methods in the industry.

[0003] The blown fiber process in automotive sound-absorbing cotton production is a key technology that uses airflow to evenly disperse and shape fibers. Blown fiber production involves using high-speed airflow to evenly disperse and transport fluffy fiber materials to a forming mold. After compression and curing, the cotton is produced. The principle is that a powerful airflow is generated by a fan, causing the fibers to fall evenly like light feathers, achieving a random, interwoven arrangement and forming a porous structure. This gives the sound-absorbing cotton excellent sound absorption and noise reduction performance. Compared to traditional production methods, the blown fiber process allows for precise control of fiber distribution and density, resulting in high production efficiency. It meets the large-scale, standardized production needs of the automotive manufacturing industry. The resulting sound-absorbing cotton not only effectively reduces noise from components such as engines and tires but also possesses lightweight, heat insulation, and vibration damping properties, contributing to lightweight automotive design. Furthermore, the blown fiber technology allows for the use of environmentally friendly and recyclable fiber materials, aligning with the green development trend in the automotive industry and creating a quiet, comfortable, and environmentally friendly in-car space for drivers and passengers.

[0004] To improve the cleanliness and automation of cotton blowing processes in actual production, some technologies have optimized the equipment structure. For example, patent application CN117325242A discloses a cotton blowing machine for producing automotive sound-absorbing cotton, including a housing. Through slots are formed on the upper and lower side walls of the housing, and a discharge chute for feeding sound-absorbing cotton is formed on the side of the housing. Two sets of spaced-apart cotton wadding boxes are fixedly installed inside the housing, each set connected to a guide pipe. A filter assembly is installed inside each cotton wadding box, and a discharge box for feeding is fixedly installed inside the housing. This solution improves to some extent the technical problem of traditional equipment being unable to clean and collect cotton wadding, leading to increased air pollution and worker illness. However, existing technologies and current conventional cotton blowing equipment in the industry still have the following shortcomings in terms of production efficiency and finished product quality control:

[0005] Firstly, regarding the uniformity and compaction of fiber spreading, the blow nozzles of existing equipment are mostly fixed, and the spray trajectory cannot be dynamically adjusted according to the distribution of fibers in the sorting box. This easily leads to fiber accumulation in local areas, while the fiber distribution in other areas is sparse, requiring subsequent manual replenishment or secondary adjustments, which prolongs the production cycle. At the same time, after the fibers settle naturally under gravity, voids are easily formed inside. Existing technology requires a separate vibration process to compact the fibers. This step-by-step operation not only increases production time due to process switching, but also the vibration energy only acts on the static fiber stack layer, making it difficult to quickly eliminate deep voids. To achieve the target density, the vibration time often needs to be extended, further reducing production efficiency.

[0006] Secondly, regarding the stability of continuous operation of the equipment, the large amount of airflow generated during the high-speed cotton blowing process tends to accumulate in the finishing area, causing increased cotton spraying resistance and affecting the smoothness of fiber transport. At the same time, fibers tend to adhere and accumulate in the air vents or at the corners of the finishing box. Long-term operation will lead to blockage of the air vents, requiring frequent manual cleaning, which not only affects the stability of continuous operation of the equipment but also reduces the level of automation.

[0007] Third, in terms of dynamic adaptability, the blowing mechanism and finishing mechanism of existing cotton blowing machines are mostly fixedly connected. When the finishing mechanism is displaced due to vibration or position adjustment, the cotton spraying direction of the blowing nozzle is prone to deviate from the target area, causing the fibers to fall into the finishing area inaccurately, further aggravating the problem of uneven fiber distribution and affecting the consistency of finished product density.

[0008] The aforementioned problems result in existing cotton blowing equipment struggling to guarantee the uniformity of finished product density. Production efficiency is also constrained by poor process coordination and equipment clogging, failing to fully meet the automotive industry's demand for large-scale, high-standard sound-absorbing cotton production. Therefore, there is an urgent need for a new type of cotton blowing equipment with a more rational structural design, stronger functional linkage, and higher efficiency in cotton spreading and compaction, to adapt to the development needs of modern automotive sound-absorbing cotton production for high efficiency, intelligence, and cleanliness. Summary of the Invention

[0009] To address the shortcomings of existing technologies, this invention provides a blower for producing automotive sound-absorbing cotton, thereby solving the problems mentioned in the background section.

[0010] To achieve the above objectives, the present invention is implemented through the following technical solution: a cotton blowing machine for producing automotive sound-absorbing cotton, comprising a placement frame, wherein a processing mechanism is fixedly connected to the top of the placement frame;

[0011] Optionally, after the placement frame is fixed in the working position, the power unit (preferably a servo motor) is powered on and started, driving the rotating disk to reciprocate at a small angle according to a preset program (the swing angle range is controlled between 15° and 30°).

[0012] The processing mechanism includes:

[0013] A power unit is fixedly connected to the top of the placement frame, and a rotating disk is rotatably connected to the top of the power unit;

[0014] A drive rod, which is fixedly connected to the top of the rotating disk;

[0015] The flat plate has a guide hole at its bottom and can reciprocate horizontally under the drive of a rotating disk.

[0016] A sorting component is fixedly connected to the top of the plate and is used to cooperate with the swing of the plate to achieve vibration compaction and uniform spreading of the sound-absorbing cotton.

[0017] Optionally, the rotating disk drives the driving rod fixed to its top to swing synchronously, and the driving rod is inserted into the guide hole at the bottom of the plate. The guide hole is an elongated through hole, and its length direction is consistent with the swing direction of the plate. At the same time, the plate restricts its movement direction through the sliding cooperation between the bottom slider and the first slide rail on the placement frame. This structure converts the rotation of the rotating disk into the horizontal reciprocating swing of the plate (the frequency is adjustable in the range of 2-5Hz).

[0018] The oscillation of the flat plate is directly transmitted to the finishing component on top of it.

[0019] Preferably, the driving rod is inserted into the guide hole, the top of the placement frame is fixedly connected to the first slide rail, the bottom of the plate is fixedly connected to the slider, and the slider is slidably connected to the outer wall of the first slide rail.

[0020] Preferably, the sorting component includes a rotating part, which is fixedly connected to the top of the plate, and a toggle plate is fixedly connected to the outer wall of the rotating part.

[0021] Preferably, a connecting plate is fixedly connected to the outer wall of the flat plate, a storage box is fixedly connected to the outer wall of the connecting plate, a toggle block is fixedly connected to the bottom of the storage box, and a ventilation hole is provided at the bottom of the storage box.

[0022] The electric slider moves back and forth along the second slide rail, causing the cotton blowing nozzle to move in multiple positions within the sorting box, thus achieving uniform spreading of the sound-absorbing cotton raw material. At the same time, the sorting box vibrates continuously under the swing of the flat plate, and with the intermittent prying of the agitator plate and agitator block, the internal gaps of the sound-absorbing cotton are forced to decrease, significantly improving the density uniformity of the finished product.

[0023] Preferably, the actuating plate is in movable contact with the actuating block;

[0024] Optionally, a rotating component (such as a geared motor) fixed on a flat plate drives the actuating plate to rotate continuously at 20-40 r / min. The actuating plate periodically actuates the actuating blocks at the bottom of the sorting box. The actuating blocks have a raised structure with equal spacing. Each actuation generates a vertical impact force, causing high-frequency micro-vibration of the sorting box.

[0025] The ventilation holes at the bottom of the sorting box allow airflow to escape, preventing air pressure buildup that could hinder cotton spraying. When the actuating plate rotates, it simultaneously scrapes away any residual sound-absorbing cotton fibers at the ventilation holes, reducing clogging and ensuring stable continuous production.

[0026] Preferably, a cotton blowing mechanism is fixedly connected to the outer wall of the placement rack;

[0027] Optionally, the cotton blowing component (including the high-pressure blower) of the cotton blowing mechanism is elastically connected to the outer wall of the sorting box through a third bracket and a spring (elastic coefficient 5-8N / mm). The spring is always in a stretched state to maintain the connection tension, and the second bracket is rotatably connected to the electric slider through a pin shaft, so that the cotton blowing port is synchronously pulled when the sorting box swings.

[0028] at the same time:

[0029] The cotton blowing component draws and absorbs the sound-absorbing cotton material from the storage box through a bend tube (corrugated hose), and sprays it into the finishing box through the cotton blowing nozzle at a flow rate of 8-12m / s.

[0030] Preferably, the cotton blowing mechanism includes a second slide rail, which is fixedly connected to the outer wall of the placement frame. An electric slider is slidably connected to the outer wall of the second slide rail, and a second bracket is rotatably connected to the outer wall of the electric slider. An auxiliary component is fixedly connected to the outer wall of the second bracket. The cotton blowing component is elastically connected to the sorting box via a spring, and the second bracket is rotatably connected to the electric slider. When the sorting box swings, the spring extension and contraction and the rotation of the second bracket adaptively adjust the position of the cotton blowing nozzle to ensure that the cotton spraying direction is always aligned with the inside of the sorting box, avoiding cotton spraying deviation due to vibration.

[0031] Preferably, a first bracket is fixedly connected between the second slide rail and the placement rack.

[0032] Preferably, the auxiliary component includes a cotton blowing component, which is fixedly connected to the second bracket. The cotton blowing component has a cotton blowing port fixedly connected to its air outlet. A third bracket is fixedly connected to the outer wall of the cotton blowing component. A spring is fixedly connected to the outer wall of the third bracket. The spring is fixedly connected to the outer wall of the sorting box. The tortuous tube hangs into the storage box by gravity. Its elastic material deforms freely when the cotton blowing component moves horizontally and shakes, always keeping the suction port in the raw material, realizing continuous and stable suction during dynamic movement without the need for an additional positioning mechanism.

[0033] Optionally, the electric slider reciprocates along the second slide rail at a speed of 0.5-1m / s, with the travel distance covering the entire length of the sorting box, causing the cotton blowing nozzle to move laterally above the sorting box to evenly spread the cotton.

[0034] Preferably, a storage box is fixedly connected to the outer wall of the placement rack, and a curved tube is fixedly connected to the bottom of the cotton blowing component. The bottom of the curved tube hangs down in the storage box due to its own weight.

[0035] This invention provides a cotton blowing machine for producing automotive sound-absorbing cotton, which has the following beneficial effects:

[0036] 1. The blower for producing automotive sound-absorbing cotton uses an electric slider to move back and forth along the second slide rail, causing the blower nozzle to move in multiple positions within the sorting box, thus achieving uniform spreading of the sound-absorbing cotton raw material. At the same time, the sorting box continuously vibrates under the swing of the flat plate, and with the intermittent movement of the actuating plate and actuating block, the internal gaps of the sound-absorbing cotton are forced to decrease, significantly improving the density uniformity of the finished product.

[0037] 2. The blower for producing automotive sound-absorbing cotton allows airflow to escape through the vents at the bottom of the sorting box, preventing air pressure buildup that could hinder cotton spraying. When the agitator rotates, it simultaneously scrapes away any residual sound-absorbing cotton fibers at the vents, reducing pore blockage and ensuring stable continuous production.

[0038] 3. The cotton blowing machine for producing automotive sound-absorbing cotton has a cotton blowing component that is elastically connected to the sorting box via a spring, and a second bracket that is rotatably connected to an electric slider. When the sorting box swings, the spring extension and contraction and the rotation of the second bracket adaptively adjust the position of the cotton blowing nozzle to ensure that the cotton spraying direction is always aligned with the inside of the sorting box, thus avoiding cotton spraying deviation due to vibration.

[0039] 4. The blower for producing automotive sound-absorbing cotton uses a curved tube to drop the cotton into the storage box by gravity. Its elastic material deforms freely when the blower moves horizontally and shakes, always keeping the suction port in the raw material, achieving continuous and stable suction during dynamic movement without the need for an additional positioning mechanism.

[0040] 5. The blower for producing sound-absorbing cotton for automobiles drives a rotating disc to reciprocate at a small angle through a power component. The rotation is converted into linear oscillation of a flat plate through the cooperation of the drive rod and the guide hole. This compact structure can simultaneously complete the laying, vibration compaction and airflow discharge of sound-absorbing cotton in a limited space, reducing the equipment footprint.

[0041] 6. The cotton blowing machine for producing automotive sound-absorbing cotton uses programmed control of small-angle oscillation (non-continuous rotation) by power components. The cotton blowing mechanism and finishing components achieve coordinated vibration and cotton spraying through mechanical linkage. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the axial three-dimensional structure of the present invention;

[0043] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention viewed from below;

[0044] Figure 3 This is a schematic diagram of a partial structure of the components of this invention;

[0045] Figure 4 This is a partial structural diagram of the storage box of the present invention;

[0046] Figure 5 This is a partial structural diagram of the placement rack of the present invention;

[0047] Figure 6 This is a partial structural diagram of the cotton blowing mechanism of the present invention;

[0048] Figure 7 This is a partial structural diagram of the storage box of the present invention;

[0049] Figure 8 For the present invention Figure 7 Enlarged structural diagram of section A in the middle.

[0050] In the diagram: 1. Placement rack; 2. Processing mechanism; 21. Power component; 22. Rotary disk; 23. Drive rod; 24. Guide hole; 25. Slider; 26. First slide rail; 27. Flat plate; 28. Sorting assembly; 281. Rotating component; 282. Actuating plate; 283. Connecting plate; 284. Sorting box; 285. Actuating block; 286. Vent hole; 3. Blowing mechanism; 31. First support; 32. Second slide rail; 33. Electric slider; 34. Second support; 35. Auxiliary assembly; 351. Blowing component; 352. Bending tube; 353. Blowing nozzle; 354. Third support; 355. Spring; 4. Storage box. Detailed Implementation

[0051] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0052] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0053] Example 1, please refer to Figure 1-5 The present invention provides a technical solution: a cotton blowing machine for producing automotive sound-absorbing cotton, including a placement frame 1, and a processing mechanism 2 fixedly connected to the top of the placement frame 1;

[0054] Processing unit 2 includes:

[0055] The power unit 21 is fixedly connected to the top of the placement frame 1, and the top of the power unit 21 is rotatably connected to the rotating disk 22.

[0056] Drive rod 23, which is fixedly connected to the top of rotating disk 22;

[0057] Flat plate 27, with a guide hole 24 at the bottom;

[0058] Organizing component 28 is fixedly connected to the top of the plate 27.

[0059] The drive rod 23 is inserted into the guide hole 24. The top of the placement frame 1 is fixedly connected to the first slide rail 26, and the bottom of the plate 27 is fixedly connected to the slider 25. The slider 25 is slidably connected to the outer wall of the first slide rail 26.

[0060] The placement rack 1 is set in the required position, and the power unit 21 is installed on the placement rack 1. When the power unit 21 is powered on, it drives the rotating disk 22 to rotate. During the rotation of the rotating disk 22, it drives the rotating rod 23 to rotate. The rotating rod 23 is inserted into the guide hole 24. The plate 27 is installed on the placement rack 1 through the sliding connection of the slider 25 and the first slide rail 26, thereby restricting the movement direction of the plate 27. The power unit 21 is equipped with a control degree, which drives the rotating rod 23 to rotate a certain angle in a small amount and then reset, thereby repeatedly driving the plate 27 to swing.

[0061] The organizing component 28 includes a rotating part 281, which is fixedly connected to the top of the plate 27, and a toggle plate 282 is fixedly connected to the outer wall of the rotating part 281.

[0062] A connecting plate 283 is fixedly connected to the outer wall of the flat plate 27. A storage box 284 is fixedly connected to the outer wall of the connecting plate 283. A toggle block 285 is fixedly connected to the bottom of the storage box 284. A ventilation hole 286 is provided at the bottom of the storage box 284.

[0063] The toggle plate 282 and the toggle block 285 are in active contact.

[0064] The sorting component 28 is set on the flat plate 27. The swing of the flat plate 27 will drive the sorting component 28 to swing. The cotton blowing mechanism 3 blows cotton into the sorting box 284. During this process, the rotating component 281 is powered on and will drive the rotating plate 282 to rotate. The rotating plate 282 rotates intermittently and moves the moving block 285, which will drive the sorting box 284 to vibrate, thereby guiding the sound-absorbing cotton inside to vibrate and reducing its gaps. The bottom of the sorting box 284 has a vent 286. So when the cotton blowing mechanism 3 blows the sound-absorbing cotton out of the sorting box 284, the airflow will pass through the sound-absorbing cotton and then be discharged from the vent 286.

[0065] When the actuating plate 282 passes the bottom of the storage box 284, it will scrape off the sound-absorbing cotton that leaks out from the vent 286, and then transport it to one side through the rotating component 281, and then a collection box is set in the transport direction of the rotating component 281.

[0066] Example 2, please refer to Figure 1-8 Based on Embodiment 1, the present invention provides a technical solution:

[0067] A cotton blowing mechanism 3 is fixedly connected to the outer wall of the placement rack 1.

[0068] The cotton blowing mechanism 3 includes a second slide rail 32, which is fixedly connected to the outer wall of the placement frame 1. An electric slider 33 is slidably connected to the outer wall of the second slide rail 32. A second bracket 34 is rotatably connected to the outer wall of the electric slider 33. An auxiliary component 35 is fixedly connected to the outer wall of the second bracket 34.

[0069] The second slide rail 32 is fixedly connected to the placement rack 1 by the first bracket 31;

[0070] Scattered sound-absorbing cotton raw materials are pre-set in the storage box 4. The bottom of the tortuous tube 352 is hung down in the storage box 4. Then the cotton blowing component 351 is powered on and started to suck it. The cotton blowing port 353 is set in the sorting box 284. The cotton blowing port 353 blows the sound-absorbing cotton into the sorting box 284.

[0071] When the electric slider 33 is powered on, it moves along the second slide rail 32. The electric slider 33 moves back and forth on the second slide rail 32, which in turn drives the cotton blowing nozzle 353 to change its position in the storage box 284. This causes the sound-absorbing cotton sprayed from the cotton blowing nozzle 353 to be spread in the storage box 284. The tortuous tube 352 moves with the cotton blowing component 351 and continues to hang down in the storage box 4.

[0072] The auxiliary component 35 includes a cotton blowing component 351, which is fixedly connected to the second bracket 34. A cotton blowing port 353 is fixedly connected to the air outlet of the cotton blowing component 351. A third bracket 354 is fixedly connected to the outer wall of the cotton blowing component 351. A spring 355 is fixedly connected to the outer wall of the third bracket 354. The spring 355 is fixedly connected to the outer wall of the sorting box 284.

[0073] A storage box 4 is fixedly connected to the outer wall of the placement rack 1, and a curved tube 352 is fixedly connected to the bottom of the cotton blowing component 351. The bottom of the curved tube 352 hangs down in the storage box 4 by its own weight.

[0074] The cotton blowing component 351 is fixed on the sorting box 284 by the third bracket 354 and the spring 355. The second bracket 34 is rotatably connected to the electric slider 33. Therefore, when the sorting box 284 shakes, it will drive the cotton blowing nozzle 353 to shake as well. During the shaking, the cotton blowing nozzle 353 sprays sound-absorbing cotton into the sorting box 284.

[0075] The second bracket 34 is rotatably connected to the electric slider 33. Therefore, when the sorting box 284 drives the cotton blowing component 351 to shake, the rotation of the second bracket 34 adapts to the shaking of the cotton blowing component 351. The spring 355 is an elastic material. During the movement of the cotton blowing component 351, the spring 355 will be stretched and shortened, so as to continuously transmit the shaking of the sorting box 284 to the cotton blowing component 351.

[0076] The bend tube 352 is made of elastic material, so it will not be affected by the shaking of the cotton blowing component 351. The bend tube 352 is located in the storage box 4 to draw in the sound-absorbing cotton raw material.

[0077] Shelf 1

[0078] Connection relationships:

[0079] The base plate of the processing mechanism 2 is fixed at the top by bolts;

[0080] The first support 31 of the cotton blowing mechanism 3 is welded to the outer left wall;

[0081] Storage box 4 is secured to the outer wall of the right side with bolts.

[0082] Location: The bottom base of the equipment, horizontally installed on the ground.

[0083] effect:

[0084] Provides torsional support for power component 21;

[0085] The movement trajectory of the flat plate 27 is constrained by the first slide rail 26;

[0086] The storage box can hold the weight of 4 raw materials.

[0087] Processing unit 2

[0088] Power Component 21

[0089] Connection relationships:

[0090] The base is vertically fixed to the top center of the placement frame 1 by 4 sets of M10 bolts;

[0091] The output shaft is connected to the rotary disk 22 via a keyway.

[0092] Location: Directly above the geometric center of shelf 1.

[0093] Effect:

[0094] The swing angle is programmably adjustable to adapt to raw materials of different densities;

[0095] Servo motor closed-loop control, with repeatability of ±0.1°.

[0096] Rotary disk 22 and drive rod 23

[0097] Connection relationships:

[0098] Rotary disk 22 is sleeved on the output shaft of power component 21;

[0099] The drive rod 23 is vertically welded to the eccentric position of the rotating disk 22.

[0100] Location: On the upper surface of the power unit 21, above the mounting frame 1.

[0101] Function: To convert rotational motion into linear reciprocating motion.

[0102] Effect:

[0103] The guide hole 24 and the drive rod 23 are clearance-fitted, with a friction coefficient of <0.1.

[0104] Flat plate 27 and motion constraint assembly

[0105] Connection relationships:

[0106] The slider 25 is fixed to the four corners of the bottom surface of the plate 27 by screws;

[0107] The slider 25 is nested in the T-slot of the first slide rail 26;

[0108] The guide hole 24 is an oblong hole.

[0109] Location: Above rotating disk 22.

[0110] effect:

[0111] Transfer the swing to the storage box 284;

[0112] The sorting box 284 is restricted to vibrating horizontally only along the X-axis.

[0113] Effect:

[0114] The straightness error of the first slide rail 26 is ≤0.05mm / 100mm;

[0115] Slider 25 includes a self-lubricating bearing with a lifespan of >10,000 hours.

[0116] Organize Component 28

[0117] Rotating component 281

[0118] Connection relationships:

[0119] The base is fixed to the rear side of the upper surface of the plate 27 by bolts;

[0120] Output shaft interference fit toggle plate 282.

[0121] Location: Located on the upper surface of plate 27, near the edge.

[0122] Effect:

[0123] The geared motor has a temperature rise of less than 40K, making it suitable for continuous operation.

[0124] Torque fluctuation <5%, ensuring stable operation.

[0125] Toggle plate 282 and toggle block 285

[0126] Connection relationships:

[0127] The actuating plate 282 is a radial cantilever beam structure;

[0128] The actuating block 285 is a serrated protrusion, which is welded at equal intervals to the bottom surface of the storage box 284.

[0129] Position: The end of the toggle plate 282 is lower than the upper surface of the toggle block 285.

[0130] Function: Periodically moving the toggle block 285 generates a vertical impact.

[0131] Effect:

[0132] Effectively eliminates air between fibers.

[0133] Organizing box 284

[0134] Connection relationships:

[0135] It is fixed to the side wall of the plate 27 by bolts 283 connecting plate;

[0136] The bottom array has 286 ventilation holes.

[0137] Location: Directly below the blower nozzle 353.

[0138] effect:

[0139] It contains and compacts the sound-absorbing cotton material;

[0140] Airflow is discharged through vent 286.

[0141] Effect:

[0142] 304 stainless steel enclosure, fatigue vibration resistance >10 7 Second-rate;

[0143] The airflow resistance of the 286 vent holes is less than 200Pa, which prevents air pressure from accumulating.

[0144] cotton blowing mechanism 3

[0145] orbital system

[0146] Connection relationships:

[0147] The first bracket 31 triangularly supports the second slide rail 32;

[0148] The electric slider 33 is slidably connected to the second slide rail 32 via a roller assembly.

[0149] Location: Directly above storage box 284.

[0150] Function: Drives the cotton blowing nozzle 353 to reciprocate along the X-axis.

[0151] Effect:

[0152] The linear motor has a positioning accuracy of ±0.1mm;

[0153] Maximum acceleration: 1.2 m / s² 2 There is no impact during reversal.

[0154] Blowing component 351

[0155] Connection relationships:

[0156] The high-pressure blower is connected to the cotton blowing port 353 via a flange;

[0157] Bottom hose clamps secure the 352 bend in the pipe.

[0158] Location: Suspended below the second bracket 34.

[0159] Function: Extracts raw materials from storage tank 4 and sprays them out at a flow rate of 8-12 m / s.

[0160] Effect:

[0161] Ensure even distribution of cotton.

[0162] Dynamic following mechanism

[0163] Connection relationships:

[0164] The third bracket 354 is welded to the outer shell of the cotton blowing component 351;

[0165] The two ends of spring 355 are hooked to the third bracket 354 and the lifting lug of storage box 284;

[0166] The second bracket 34 is rotatably connected to the electric slider 33 via a pin.

[0167] Location: At the center of gravity height of the cotton blowing component at 351.

[0168] Function: To synchronize the relative movement of the cotton blowing nozzle 353 and the sorting box 284.

[0169] Effect:

[0170] Spring 355, pretension 50N, stiffness 6N / mm;

[0171] The frictional torque of the rotating pair is less than 0.1 N·m, ensuring responsiveness.

[0172] 352 Twisted tube

[0173] Connection relationships:

[0174] The upper flange connects to the inlet of the cotton blowing component 351;

[0175] The lower end hangs freely into the raw material storage box 4.

[0176] Location: From the top to the bottom of storage box 4.

[0177] Function: Dynamically extract raw materials.

[0178] Effect:

[0179] Corrugated silicone tubing.

[0180] Storage box 4

[0181] Connection relationships:

[0182] The box is fixed to the right side of the placement rack 1 with anchor bolts;

[0183] The top is open for inserting the 352-degree bend tube.

[0184] Location: Bottom right of the device.

[0185] Function: To store loose sound-absorbing cotton raw materials with a density of 20-30 kg / m³ 3 .

[0186] Effect:

[0187] The tapered bottom design has an inclination angle greater than 60° to prevent material bridging.

[0188] The material level sensor monitors the remaining material level in real time.

[0189] After the placement rack 1 is fixed in the working position, the power unit 21 is powered on and started, driving the rotating disk 22 to reciprocate at a small angle according to a preset program; the rotating disk 22 drives the driving rod 23 fixed on its top to swing synchronously, and the driving rod 23 is inserted into the guide hole 24 at the bottom of the plate 27. At the same time, the plate 27 restricts its movement direction through the sliding cooperation between the bottom slider 25 and the first slide rail 26 on the placement rack 1. This structure converts the rotation of the rotating disk 22 into the horizontal reciprocating swing of the plate 27. The swing of the plate 27 is directly transmitted to the sorting component 28 at its top. On the one hand, the rotating component 281 fixed on the plate 27 drives the actuating plate 282 to rotate continuously. The actuating plate 282 periodically actuates the actuating block 285 at the bottom of the sorting box 284, causing high-frequency micro-vibration of the sorting box 284; on the other hand, the cotton blowing component 351 of the cotton blowing mechanism 3, through the third The bracket 354 and spring 355 are elastically connected to the outer wall of the sorting box 284, and the second bracket 34 is rotatably connected to the electric slider 33, so that when the sorting box 284 swings, it synchronously pulls the cotton blowing nozzle 353 to follow. At the same time, the cotton blowing component 351 draws and absorbs sound-absorbing cotton material from the storage box 4 through the tortuous tube 352 and sprays it into the sorting box 284 through the cotton blowing nozzle 353. At this time, the electric slider 33 moves back and forth along the second slide rail 32, driving the cotton blowing nozzle 353 to move laterally above the sorting box 284 to spread cotton evenly. The cotton spraying, cotton spreading trajectory movement, sorting box vibration and cotton blowing nozzle following are carried out synchronously. The vibration forces the sound-absorbing cotton fibers in the box to quickly compact, and the air vent 286 discharges the airflow. The following of the cotton blowing nozzle 353 ensures that the cotton spraying direction is always aligned with the cavity of the sorting box 284, while the rotating actuating plate 282 scrapes off the residual fibers in the air vent 286 to maintain smooth airflow.

[0190] Example 3, please refer to Figure 1-8 The present invention provides another technical solution:

[0191] In this embodiment, the sorting box 284 is made of a relatively soft rubber material. The sorting box 284 can maintain its shape, but it will deform when squeezed.

[0192] A blower for producing automotive sound-absorbing cotton includes a placement frame 1, with a processing mechanism 2 fixedly connected to the top of the placement frame 1;

[0193] Processing unit 2 includes:

[0194] The power unit 21 is fixedly connected to the top of the placement frame 1, and the top of the power unit 21 is rotatably connected to the rotating disk 22.

[0195] Drive rod 23, which is fixedly connected to the top of rotating disk 22;

[0196] Flat plate 27, with a guide hole 24 at the bottom;

[0197] Organizing component 28 is fixedly connected to the top of the plate 27.

[0198] The drive rod 23 is inserted into the guide hole 24. The top of the placement frame 1 is fixedly connected to the first slide rail 26, and the bottom of the plate 27 is fixedly connected to the slider 25. The slider 25 is slidably connected to the outer wall of the first slide rail 26.

[0199] The placement rack 1 is set in the required position, and the power unit 21 is installed on the placement rack 1. When the power unit 21 is powered on, it drives the rotating disk 22 to rotate. During the rotation of the rotating disk 22, it drives the rotating rod 23 to rotate. The rotating rod 23 is inserted into the guide hole 24. The plate 27 is installed on the placement rack 1 through the sliding connection of the slider 25 and the first slide rail 26, thereby restricting the movement direction of the plate 27. The power unit 21 is equipped with a control degree, which drives the rotating rod 23 to rotate a certain angle in a small amount and then reset, thereby repeatedly driving the plate 27 to swing.

[0200] The organizing component 28 includes a rotating part 281, which is fixedly connected to the top of the plate 27, and a toggle plate 282 is fixedly connected to the outer wall of the rotating part 281.

[0201] A connecting plate 283 is fixedly connected to the outer wall of the flat plate 27. A storage box 284 is fixedly connected to the outer wall of the connecting plate 283. A toggle block 285 is fixedly connected to the bottom of the storage box 284. A ventilation hole 286 is provided at the bottom of the storage box 284.

[0202] The toggle plate 282 and the toggle block 285 are in active contact.

[0203] The sorting component 28 is set on the flat plate 27. The swing of the flat plate 27 will drive the sorting component 28 to swing. The cotton blowing mechanism 3 blows cotton into the sorting box 284. During this process, the rotating component 281 is powered on and will drive the rotating plate 282 to rotate. The rotating plate 282 rotates intermittently and moves the moving block 285, which will drive the sorting box 284 to vibrate, thereby guiding the sound-absorbing cotton inside to vibrate and reducing its gaps. The bottom of the sorting box 284 has a vent 286. So when the cotton blowing mechanism 3 blows the sound-absorbing cotton out of the sorting box 284, the airflow will pass through the sound-absorbing cotton and then be discharged from the vent 286.

[0204] When the actuating plate 282 passes the bottom of the storage box 284, it will scrape off the sound-absorbing cotton that leaks out from the vent 286, and then transport it to one side through the rotating component 281, and then a collection box is set in the transport direction of the rotating component 281.

[0205] By pressing the actuating plate 282 against the storage box 284, the storage box 284 is deformed, thereby reducing the adhesion between the storage box 284 and the sound-absorbing cotton, making it easier to remove the sound-absorbing cotton later.

[0206] A cotton blowing mechanism 3 is fixedly connected to the outer wall of the placement rack 1.

[0207] The cotton blowing mechanism 3 includes a second slide rail 32, which is fixedly connected to the outer wall of the placement frame 1. An electric slider 33 is slidably connected to the outer wall of the second slide rail 32. A second bracket 34 is rotatably connected to the outer wall of the electric slider 33. An auxiliary component 35 is fixedly connected to the outer wall of the second bracket 34.

[0208] The second slide rail 32 is fixedly connected to the placement rack 1 by the first bracket 31;

[0209] Scattered sound-absorbing cotton raw materials are pre-set in the storage box 4. The bottom of the tortuous tube 352 is hung down in the storage box 4. Then the cotton blowing component 351 is powered on and started to suck it. The cotton blowing port 353 is set in the sorting box 284. The cotton blowing port 353 blows the sound-absorbing cotton into the sorting box 284.

[0210] When the electric slider 33 is powered on, it moves along the second slide rail 32. The electric slider 33 moves back and forth on the second slide rail 32, which in turn drives the cotton blowing nozzle 353 to change its position in the storage box 284. This causes the sound-absorbing cotton sprayed from the cotton blowing nozzle 353 to be spread in the storage box 284. The tortuous tube 352 moves with the cotton blowing component 351 and continues to hang down in the storage box 4.

[0211] The auxiliary component 35 includes a cotton blowing component 351, which is fixedly connected to the second bracket 34. A cotton blowing port 353 is fixedly connected to the air outlet of the cotton blowing component 351. A third bracket 354 is fixedly connected to the outer wall of the cotton blowing component 351. A spring 355 is fixedly connected to the outer wall of the third bracket 354. The spring 355 is fixedly connected to the outer wall of the sorting box 284.

[0212] A storage box 4 is fixedly connected to the outer wall of the placement rack 1, and a curved tube 352 is fixedly connected to the bottom of the cotton blowing component 351. The bottom of the curved tube 352 hangs down in the storage box 4 by its own weight.

[0213] The cotton blowing component 351 is fixed on the sorting box 284 by the third bracket 354 and the spring 355. The second bracket 34 is rotatably connected to the electric slider 33. Therefore, when the sorting box 284 shakes, it will drive the cotton blowing nozzle 353 to shake as well. During the shaking, the cotton blowing nozzle 353 sprays sound-absorbing cotton into the sorting box 284.

[0214] The second bracket 34 is rotatably connected to the electric slider 33. Therefore, when the sorting box 284 drives the cotton blowing component 351 to shake, the rotation of the second bracket 34 adapts to the shaking of the cotton blowing component 351. The spring 355 is an elastic material. During the movement of the cotton blowing component 351, the spring 355 will be stretched and shortened, so as to continuously transmit the shaking of the sorting box 284 to the cotton blowing component 351.

[0215] The bend tube 352 is made of elastic material, so it will not be affected by the shaking of the cotton blowing component 351. The bend tube 352 is located in the storage box 4 to draw in the sound-absorbing cotton raw material.

[0216] After the placement rack 1 is fixed in the working position, the power unit 21 is powered on and started, driving the rotating disk 22 to reciprocate at a small angle according to a preset program; the rotating disk 22 drives the driving rod 23 fixed on its top to swing synchronously, and the driving rod 23 is inserted into the guide hole 24 at the bottom of the plate 27. At the same time, the plate 27 restricts its movement direction through the sliding cooperation between the bottom slider 25 and the first slide rail 26 on the placement rack 1. This structure converts the rotation of the rotating disk 22 into the horizontal reciprocating swing of the plate 27. The swing of the plate 27 is directly transmitted to the sorting component 28 at its top. On the one hand, the rotating component 281 fixed on the plate 27 drives the actuating plate 282 to rotate continuously. The actuating plate 282 periodically actuates the actuating block 285 at the bottom of the sorting box 284, causing high-frequency micro-vibration of the sorting box 284; on the other hand, the cotton blowing component 351 of the cotton blowing mechanism 3 is elastically connected to the outer wall of the sorting box 284 through the third bracket 354 and the spring 355, and the second bracket The frame 34 is rotatably connected to the electric slider 33, so that when the sorting box 284 swings, it synchronously pulls the cotton blowing nozzle 353 to follow. At the same time, the cotton blowing component 351 draws and absorbs cotton material from the storage box 4 through the tortuous tube 352 and sprays it into the sorting box 284 through the cotton blowing nozzle 353. At this time, the electric slider 33 moves back and forth along the second slide rail 32, driving the cotton blowing nozzle 353 to move laterally above the sorting box 284 to spread cotton evenly. The cotton spraying, cotton spreading trajectory movement, sorting box vibration and cotton blowing are all recorded. The four movements of the nozzle and the vent work in sync. The vibration forces the sound-absorbing cotton fibers inside the box to quickly compact, and the airflow is discharged through the vent 286. The movement of the cotton blowing nozzle 353 ensures that the cotton spraying direction is always aligned with the cavity of the packing box 284. Meanwhile, the rotating actuating plate 282 scrapes away the residual fibers in the vent 286 to maintain smooth airflow. The compression between the actuating plate 282 and the packing box 284 deforms the packing box 284, thereby reducing the adhesion between the packing box 284 and the sound-absorbing cotton, making it easier to remove the sound-absorbing cotton later.

[0217] The sound-absorbing cotton blowing machine for automotive production described in this invention converts the rotational motion of the power component 21 into the linear oscillation of the flat plate 27, enabling the sorting box 284 to achieve a wider range of dynamic vibration spreading. Combined with the electric slider 33 driving the blowing component 351 to spread material at multiple points in the sorting area, this achieves uniform distribution of the sound-absorbing cotton material in the sorting box 284. Furthermore, the intermittent agitation mechanism of the agitator plate 282 and agitator block 285 in the sorting component 28 causes the sorting box 284 to vibrate periodically, further improving the density during the cotton spraying process. This effectively solves the problems of uneven distribution and excessive gaps in the sound-absorbing cotton forming process in existing technologies. Simultaneously, the bottom of the sorting box 284 is equipped with vents 286 to allow for timely airflow during blowing. To prevent fiber backflow blockage or reduced spraying efficiency due to excessive pressure, the rotating actuating plate 282 also has a synchronous unblocking function, which can actively scrape off cotton lint around the vent 286, reducing the frequency of manual cleaning. Combined with the hose connection between the cotton blowing system and the storage box, it achieves anti-disturbance stability and following during the material supply process. The entire system achieves a high degree of integration of multiple functions such as cotton spraying, spreading, vibration compaction, airflow release and unblocking maintenance under the premise of limited equipment footprint. Through mechanical linkage, multiple mechanisms work together, which improves the quality consistency of automotive sound-absorbing cotton products, reduces human intervention, improves production efficiency and stability, and meets the technical requirements of modern automotive parts production lines for efficient, automated, clean and continuous operation.

[0218] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A blower for producing automotive sound-absorbing cotton, comprising a placement rack (1), characterized in that: The top of the placement rack (1) is fixedly connected to a processing mechanism (2); The processing mechanism (2) includes: A power unit (21) is fixedly connected to the top of the placement rack (1), and a rotating disk (22) is rotatably connected to the top of the power unit (21). Drive rod (23), which is fixedly connected to the top of rotating disk (22); The plate (27) has a guide hole (24) at its bottom and can swing horizontally under the swing drive of the rotating disk (22); The finishing component (28) is fixedly connected to the top of the plate (27) and is used to cooperate with the swing of the plate (27) to achieve vibration compaction and uniform spreading of the sound-absorbing cotton; The outer wall of the placement rack (1) is fixedly connected to a cotton blowing mechanism (3); The cotton blowing mechanism (3) includes a second slide rail (32), which is fixedly connected to the outer wall of the placement frame (1). An electric slider (33) is slidably connected to the outer wall of the second slide rail (32). A second bracket (34) is rotatably connected to the outer wall of the electric slider (33). An auxiliary component (35) is fixedly connected to the outer wall of the second bracket (34). The auxiliary component (35) includes a cotton blowing component (351), which is fixedly connected to the second bracket (34). The cotton blowing component (351) has a cotton blowing port (353) fixedly connected to its air outlet position. The outer wall of the cotton blowing component (351) is fixedly connected to a third bracket (354), and the outer wall of the third bracket (354) is fixedly connected to a spring (355). The spring (355) is fixedly connected to the outer wall of the sorting box (284).

2. The cotton blowing machine for producing automotive sound-absorbing cotton according to claim 1, characterized in that: The drive rod (23) is inserted into the guide hole (24), the top of the placement frame (1) is fixedly connected to the first slide rail (26), the bottom of the plate (27) is fixedly connected to the slider (25), and the slider (25) is slidably connected to the outer wall of the first slide rail (26).

3. The cotton blowing machine for producing automotive sound-absorbing cotton according to claim 2, characterized in that: The sorting component (28) includes a rotating component (281), which is fixedly connected to the top of the plate (27), and a toggle plate (282) is fixedly connected to the outer wall of the rotating component (281).

4. A cotton blowing machine for producing automotive sound-absorbing cotton according to claim 3, characterized in that: A connecting plate (283) is fixedly connected to the outer wall of the flat plate (27), and a sorting box (284) is fixedly connected to the outer wall of the connecting plate (283). A toggle block (285) is fixedly connected to the bottom of the sorting box (284), and a vent hole (286) is provided at the bottom of the sorting box (284).

5. A cotton blowing machine for producing automotive sound-absorbing cotton according to claim 4, characterized in that: The actuating plate (282) and the actuating block (285) make active contact to generate periodic impacts on the sorting box (284) under the drive of the rotating component (281) and simultaneously scrape off residual fibers at the bottom ventilation hole (286) of the sorting box.

6. A cotton blowing machine for producing automotive sound-absorbing cotton according to claim 1, characterized in that: The second slide rail (32) is fixedly connected to the placement rack (1) by a first bracket (31).

7. A cotton blowing machine for producing automotive sound-absorbing cotton according to claim 1, characterized in that: The outer wall of the placement rack (1) is fixedly connected to a storage box (4), and the bottom of the cotton blowing component (351) is fixedly connected to a tortuous tube (352). The bottom of the tortuous tube (352) hangs down in the storage box (4) by its own weight.

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