Sound-absorbing cotton processing equipment and processing technology

Abstract

The present application provides a sound-absorbing cotton processing device and a processing technology thereof, which relates to the technical field of sound-absorbing cotton production equipment and technology. The sound-absorbing cotton processing device comprises: a high-pressure blower; a hood, the air outlet of the hood being connected to the air inlet of the high-pressure blower; a filter assembly, wherein the filter assembly is provided with multiple groups, and the multiple groups of filter assemblies are divided into a working group and a standby group. The filter assemblies of the working group are connected to the air inlet of the hood via a locking mechanism, and the filter assemblies of the standby group are detachably connected to each other via a connecting mechanism; a disassembly mechanism, which can act on the filter assemblies of the working group and remove and separate the filter assemblies of the working group from the hood; and a movable assembly, which is connected to the filter assemblies of the standby group. Thus, the filter assembly can be replaced, effectively ensuring the filtering effect and reducing the influence of the stretching effect of the meltblown yarn. Moreover, the filter assembly replacement operation does not require manual operation, which effectively reduces the labor intensity of the staff.

Description

Technical Field

[0001] The present application relates to the technical field of sound-absorbing cotton production equipment and technology, and in particular to a sound-absorbing cotton processing equipment and processing technology. Background Art

[0002] Non-woven automotive sound-absorbing fiber materials, also known as sound-absorbing cotton, can convert the mid- and high-frequency noise vibration energy generated by vehicle body vibrations into kinetic energy within the fine-denier fibers of the sound-absorbing cotton, achieving the desired sound absorption and noise reduction properties. In related technologies, sound-absorbing cotton consists of three layers: the middle layer is an ultrafine short fiber structure made from thermoplastic polymer chips such as polypropylene using a meltblown process. Non-woven fabric layers are bonded to both sides of the middle layer using glue. Ultrafine fibers produced using the meltblown process increase the specific surface area of the fibers, reduce the distance between fibers, and enhance the viscous air friction resistance between the air and the fiber surface when sound waves pass through the sound-absorbing material, thereby achieving excellent sound absorption.

[0003] The meltblown process of sound-absorbing cotton mainly includes the following steps: high melt index polypropylene slicing, screw extruder extrusion, melt filter filtration, meltblown die head distribution to produce melt streams, high-speed hot air stretching the melt to form meltblown filaments, meltblown filaments are negatively pressurized on the mesh curtain to form an intermediate layer, and the intermediate layer is compounded with two layers of non-woven fabric to form sound-absorbing cotton.

[0004] In the aforementioned meltblowing process, high-temperature, high-speed hot air is generated by a high-pressure blower and a heater to achieve stretching of the meltblown filaments. When the high-pressure blower is operating, it is easy to inhale impurities such as dust, hair, and lightweight plastic debris from the air. These impurities can easily create gaps in the middle layer of the sound-absorbing cotton, thereby affecting the sound absorption effect of the formed sound-absorbing cotton. In the related art, the air sucked into the high-pressure blower is filtered through a filter structure. However, after long-term use, the filter structure is prone to clogging, which affects the filtering effect. In the related art, the clogged filter is usually cleaned manually to ensure the filtering effect. However, the manual cleaning method is not only labor-intensive for the workers, but also the cleaned filter cannot achieve the original filtering effect, thereby affecting the stretching effect of the meltblown filaments. Summary of the Invention

[0005] The purpose of this application is to provide a sound-absorbing cotton processing equipment and its processing technology, which is used to solve the problem that the filter structure of the high-pressure fan in the melt-blown process is manually cleaned in the related technology, resulting in high labor intensity for the staff and affecting the stretching effect of the melt-blown yarn.

[0006] In the first aspect, the present application provides a sound-absorbing cotton processing equipment adopting the following technical solutions:

[0007] Sound-absorbing cotton processing equipment, including:

[0008] High-pressure blower;

[0009] An air hood, the air outlet of the air hood being connected to the air inlet end of the high-pressure blower;

[0010] Filter components, the filter components are provided with multiple groups, the multiple groups of filter components are divided into a working group and a standby group, the filter components of the working group are connected to the air inlet of the wind cover through a locking mechanism, and the filter components of the standby group are detachably connected to each other through a connecting mechanism;

[0011] A disassembly mechanism, wherein the disassembly mechanism is capable of acting on the filter assembly of the working group and disassembling and separating the filter assembly of the working group from the wind shield;

[0012] A moving component is connected to the filter component of the standby group, and is used to drive the filter component of the standby group to move closer to or away from the wind hood.

[0013] By adopting the above technical solution, in the meltblown production process of sound-absorbing cotton, the air sucked into the high-pressure fan is filtered by the filter assembly of the working group. When the filtering effect of the filter assembly of the working group decreases after being used for a period of time, the filter assembly of the working group is disassembled and separated from the wind hood by the disassembly mechanism, and then the filter assembly of the spare group is driven to move close to the wind hood by the moving assembly. Finally, the group of filter assemblies in the spare group closest to the wind hood is connected to the air inlet of the wind hood through the locking mechanism, thereby realizing the replacement of the filter assembly, effectively ensuring the filtering effect, reducing the impact on the stretching effect of the meltblown yarn, and the replacement operation of the filter assembly does not require manual operation, which effectively reduces the labor intensity of the staff.

[0014] Optionally, the connecting mechanism includes a locking pin, the filter assembly includes a filter frame and a filter plate, the filter plate is fixedly connected to the filter frame, the filter frame is provided with a protrusion and a first groove, the locking pin is retractably provided on the protrusion, and a locking hole is provided on the inner wall of the first groove of the filter frame. The filter frames of the adjacent groups of the filter assemblies in the spare group are plugged into the first groove through the protrusion, and are plugged into the locking hole through the locking pin.

[0015] By adopting the above technical solution, multiple groups of filter components of the spare groups can be locked together by plugging the locking pin into the locking hole, so that the mobile component can simultaneously drive the multiple groups of filter components of the spare groups to move.

[0016] Optionally, the filter frame is provided with a through hole passing through the boss and the first groove, and the wind cover is provided with a column, which can be inserted into the through hole and act on the locking pin to drive the locking pin to exit the locking hole and retract into the boss.

[0017] By adopting the above technical solution, when the filter assembly of the spare group is driven by the moving assembly to move close to the wind hood, the column can be inserted into the through hole and act on the locking pin, so that the locking pin exits the locking hole and retracts into the protrusion, thereby unlocking the filter assembly that needs to be replaced in the spare group from the remaining filter assemblies.

[0018] Optionally, the connecting mechanism also includes a first gear, a first rack, a second rack and a first elastic member, the first gear is rotatably arranged on the boss, the first rack and the second rack are slidably arranged on the boss and respectively engage with the first gear, the locking pin is fixed on the first rack, and the second rack is provided with a first wedge block, the first elastic member is provided on the boss and acts on the first rack or the second rack, the first elastic member is used to provide a force to push the locking pin to extend relative to the boss, and when the cylinder is inserted into the through hole, it can slide and abut against the inclined surface of the first wedge block.

[0019] By adopting the above technical solution, when the cylinder is inserted into the through hole, it can slide and abut against the inclined surface of the first wedge block on the second outermost filter assembly, thereby pushing the first wedge block and the second rack to slide relative to the convex seat. When the second rack slides, the first gear drives the first rack to slide, and then drives the locking pin to withdraw from the locking hole on the outermost filter assembly and retract into the convex seat, thereby realizing the unlocking of the outermost filter assembly and the second outermost filter assembly in the spare group.

[0020] Optionally, a check mechanism is further included, which includes a check pin and a second elastic member. A check hole is provided on the first rack, and the check pin is slidably provided on the filter frame and can be plugged into the check hole. The second elastic member is provided on the filter frame and acts on the check pin. The second elastic member is used to provide a force to push the check pin into the check hole.

[0021] By adopting the above technical solution, when the locking pin on the second outermost filter assembly withdraws from the locking hole on the outermost filter assembly and retracts into the protrusion, the locking pin can be locked by the non-return mechanism to prevent the locking pin from extending relative to the protrusion, thereby avoiding the extended pin from interfering with the wind cover when replacing the filter assembly.

[0022] Optionally, the locking mechanism includes a locking piece, a second groove is provided on the wind hood, the column is located in the second groove, the protrusion can be plugged into the second groove, a locking groove is provided on the protrusion, and the locking piece can be telescopically provided on the wind hood, and when the protrusion is plugged into the second groove, the locking piece can be plugged into the locking groove.

[0023] By adopting the above technical solution, the column is arranged in the second groove. When the protrusion is plugged into the second groove and locked by the locking piece, the column can be inserted into the through hole of the protrusion at the same time, so that the outermost filter component of the spare group can be locked with the wind cover while the outermost filter component and the second outermost filter component can be unlocked.

[0024] Optionally, the disassembly mechanism includes a second gear, a slide, a fourth rack, a third gear, a fifth rack, a third elastic member and a driving assembly, the locking member is a second wedge block, the second wedge block is provided with a sixth rack, the sixth rack is slidably arranged on the wind hood, the second gear and the third gear are rotatably arranged on the wind hood, the slide is slidably arranged on the wind hood, and a seventh rack is provided on the slide, the sixth rack and the seventh rack are respectively meshed with the second gear, the fourth rack and the fifth rack are slidably arranged on the wind hood and meshed with the third gear respectively, the slide can abut against the fourth rack, the fifth rack can abut against the filter frame of the filter assembly of the working group, the third elastic member is provided on the wind hood and acts on the slide, and the driving assembly can act on the slide and drive the slide to slide.

[0025] By adopting the above technical solution, the slide can be driven to slide through the driving component. When the slide slides, the sixth rack is driven to slide through the seventh rack and the second gear, driving the second wedge block to withdraw from the locking groove, thereby unlocking the filter assembly of the working group and the wind hood; when the slide slides, the fourth rack can be pushed to slide. When the fourth rack slides, the fifth rack is driven to move toward the filter frame through the third gear, so that the filter assembly of the working group can be pushed by the fifth rack to separate the filter assembly from the wind hood.

[0026] Optionally, the disassembly mechanism also includes a magnet, which is fixed on the wind hood. The sixth rack can be adsorbed and connected to the magnet, and the seventh rack can be detachably engaged with the second gear. When the seventh rack is separated from the second gear, the sixth rack is adsorbed and connected to the magnet.

[0027] By adopting the above technical solution, when the seventh rack is separated from the second gear, the sixth rack is adsorbed and connected to the magnet, thereby temporarily fixing the second wedge block, avoiding the sliding stroke of the second wedge block being too long when the filter assembly is pushed apart from the air hood by the fifth rack.

[0028] Optionally, the driving assembly includes a push block and a linear driving member, the linear driving member is fixed on the wind hood and connected to the push block, a push rod is provided on the slide seat, the push block is located on one side of the push rod and can abut against the push rod.

[0029] By adopting the above technical solution, the push block is arranged on one side of the push rod. When the push block is reset, the movement of the push rod is not affected by the push block, so that when the protrusion on the filter assembly is plugged into the second groove of the wind cover, the second wedge block can be freely extended and retracted.

[0030] In the second aspect, the present application provides a sound-absorbing cotton processing process using the following technical solutions:

[0031] The sound-absorbing cotton processing technology is based on the sound-absorbing cotton processing equipment and includes the following steps:

[0032] In the meltblown production process of sound-absorbing cotton, the air is filtered by the filter component of the working group, and then the filtered air is ejected from the air channel of the meltblown die head through a high-pressure blower and a heater to achieve the stretching of the meltblown yarn. The filter component of the working group is periodically replaced by the sound-absorbing cotton processing equipment;

[0033] The method for periodically replacing the filter components of a working group through a sound-absorbing cotton processing device includes the following steps:

[0034] Step 1: Use the disassembly mechanism to remove the filter assembly of the working group from the air hood;

[0035] Step 2: Using the moving assembly, the filter assembly of the standby group is driven to move closer to the wind shield;

[0036] Step 3: Connect the filter assembly group closest to the air hood in the spare group to the air inlet of the air hood through a locking mechanism.

[0037] By adopting the above technical solution, in the meltblown production process of sound-absorbing cotton, the filter component is periodically replaced through structures such as mobile components and disassembly mechanisms, so that the filter component can be replaced in time before the filtering performance of the filter component drops to a low level, thereby ensuring that the filtering effect of the hot air flow stretched by the meltblown yarn is continuously maintained at a good level.

[0038] In summary, the present application includes at least one of the following beneficial technical effects: in the meltblown production process of sound-absorbing cotton, the air sucked into the high-pressure fan is filtered by the filter assembly of the working group. When the filtering effect of the filter assembly of the working group decreases after being used for a period of time, the filter assembly of the working group is removed and separated from the wind hood by the disassembly mechanism, and then the filter assembly of the spare group is driven to move close to the wind hood by the moving assembly. Finally, the group of filter assemblies in the spare group closest to the wind hood is connected to the air inlet of the wind hood through the locking mechanism, thereby realizing the replacement of the filter assembly, effectively ensuring the filtering effect, reducing the impact on the stretching effect of the meltblown yarn, and the replacement operation of the filter assembly does not require manual operation, effectively reducing the labor intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a structural diagram of the sound-absorbing cotton processing equipment in the embodiment of the present application;

[0040] Figure 2 for Figure 1 sectional view of

[0041] Figure 3 for Figure 2 A partial enlarged schematic diagram of part B;

[0042] Figure 4 for Figure 3 A partial enlarged schematic diagram of the middle M part;

[0043] Figure 5 for Figure 2 A partial enlarged schematic diagram of part C in the middle;

[0044] Figure 6 for Figure 5 A partial enlarged schematic diagram of the N part;

[0045] Figure 7 for Figure 1 A partial enlarged schematic diagram of part A;

[0046] Figure 8 It is a structural diagram of the slide and push rod.

[0047] Description of reference numerals:

[0048] 10. Frame; 11. Through slot; 20. High-pressure fan;

[0049] 30. Wind shield; 31. Column; 32. Second groove; 33. Avoidance groove;

[0050] 40. Locking mechanism; 41. Second wedge block; 411. Sixth rack;

[0051] 50. Connecting mechanism; 51. Lock pin; 52. First gear; 53. First rack; 531. Check hole; 54. Second rack; 541. First wedge block; 55. First elastic member;

[0052] 60. Disassembly mechanism; 61. Second gear; 62. Slide; 621. Seventh rack; 622. Push rod; 623. Guide rod; 63. Fourth rack; 64. Third gear; 65. Fifth rack; 66. Third elastic member;

[0053] 67. Drive assembly; 671. Push block; 672. Linear drive member; 68. Magnet;

[0054] 70. Mobile components;

[0055] 80, filter frame; 81, boss; 811, locking groove; 82, first groove; 83, locking hole; 84, through hole; 90, filter plate;

[0056] 100. Check mechanism; 101. Check pin; 102. Second elastic member. DETAILED DESCRIPTION

[0057] The following is combined with Figure 1 -Attached Figure 8 , further details of this application are given.

[0058] The embodiment of the present application discloses a sound-absorbing cotton processing device.

[0059] Reference Figure 1 and Figure 2 The sound-absorbing cotton processing equipment includes a frame 10, a high-pressure fan 20, an air cover 30, a filter assembly, a disassembly mechanism 60 and a moving assembly 70. The high-pressure fan 20 and the air cover 30 are fixed on the frame 10, and the air outlet of the air cover 30 is connected to the air inlet end of the high-pressure fan 20. The filter assembly is provided with multiple groups, and the multiple groups of filter assemblies are divided into a working group and multiple spare groups. Each group of filter assemblies includes a filter frame 80 and a filter plate 90, and the filter plate 90 is fixed to the filter frame 80.

[0060] Reference Figure 2 、 Figure 3 and Figure 4 The filter components of the spare group are detachably connected to each other through a connecting mechanism 50. In an optional embodiment, the specific structure of the connecting mechanism 50 and the specific connection relationship between the connecting mechanism 50 and the filter components are as follows:

[0061] The connecting mechanism 50 includes a locking pin 51, and a protrusion 81 and a first groove 82 are provided on the filter frame 80. The locking pin 51 is retractably provided on the protrusion 81, and a locking hole 83 is provided on the inner wall of the first groove 82 of the filter frame 80; multiple groups of filter components in the spare group are spliced together side by side in the horizontal direction, and the filter frames 80 of the adjacent groups of filter components in the spare group are plugged into the first groove 82 through the protrusion 81, and plugged into the locking hole 83 through the locking pin 51, so that the multiple groups of filter components in the spare group are locked and connected together.

[0062] In this embodiment, the specific connection relationship between the lock pin 51 and the filter frame 80 is as follows: the connecting mechanism 50 also includes a first gear 52, a first rack 53, a second rack 54 and a first elastic member 55. The first gear 52 is rotatably mounted on the protrusion 81. The first rack 53 and the second rack 54 are slidably mounted on the protrusion 81 and respectively engage with the first gear 52. The lock pin 51 is fixedly mounted on the first rack 53. The second rack 54 is provided with a first wedge block 541.

[0063] The first elastic member 55 is provided on the boss 81 and acts on the first rack 53 or the second rack 54. The first elastic member 55 is used to provide a force to push the locking pin 51 to extend relative to the boss 81. The first elastic member 55 can adopt a first compression spring. More specifically, one end of the first compression spring abuts against the boss 81, and the other end abuts against the end of the second rack 54 away from the first wedge block 541.

[0064] Reference Figure 1 and Figure 2 The moving assembly 70 is connected to the filter assembly of the standby group. The moving assembly 70 can drive the filter assemblies of the multiple standby groups connected side by side to move closer to or away from the wind shield 30. In this embodiment, the moving assembly 70 can be a linear screw module. More specifically, the linear screw module is connected to the filter assembly of the standby group that is farthest from the wind shield 30.

[0065] Reference Figure 3 、 Figure 4 and Figure 5 In an optional embodiment, the unlocking of the outermost filter assembly and the second outermost filter assembly in the standby group can be achieved by the following structure:

[0066] When the filter frame 80 is provided with a through hole 84 which passes through the protrusion 81 and the first groove 82, the air hood 30 is provided with a column 31. When the filter components of the multiple spare groups spliced together side by side are driven by the moving assembly 70 to move close to the air hood 30, the column 31 can be inserted into the through hole 84 and act on the locking pin 51 to drive the locking pin 51 to exit the locking hole 83 and retract into the protrusion 81. More specifically, when the column 31 is inserted into the through hole 84, it can slide and abut against the inclined surface of the first wedge block 541 on the second outermost filter component, thereby pushing the first wedge block 541 and the second rack 54 to slide relative to the protrusion 81. When the second rack 54 slides, the first rack 53 is driven to slide by the first gear 52, thereby driving the locking pin 51 to exit from the locking hole 83 on the outermost filter component and retract into the protrusion 81, thereby unlocking the outermost filter component in the spare group and the second outermost filter component.

[0067] Reference Figure 3 、 Figure 4 and Figure 5 When the locking pin 51 on the second outermost filter assembly exits the locking hole 83 on the outermost filter assembly and retracts into the protrusion 81, the locking pin 51 is locked by the anti-return mechanism 100 to prevent the locking pin 51 from extending relative to the protrusion 81. In this embodiment, the specific structure of the anti-return mechanism 100 and the specific connection relationship with the locking pin 51 are as follows:

[0068] The non-return mechanism 100 includes a non-return pin 101 and a second elastic member 102. A non-return hole 531 is provided on the first rack 53. The non-return pin 101 is slidably provided on the filter frame 80 and can be plugged into the non-return hole 531. The second elastic member 102 is provided on the filter frame 80 and acts on the non-return pin 101. The second elastic member 102 is used to provide a force to push the non-return pin 101 into the non-return hole 531. The second elastic member 102 can adopt a second compression spring. More specifically, the two ends of the second compression spring are respectively in contact with the filter frame 80 and the non-return pin 101.

[0069] When the locking pin 51 on the second outermost filter assembly withdraws from the locking hole 83 on the outermost filter assembly and retracts into the protrusion 81, the check hole 531 is aligned with the check pin 101. At this time, under the elastic force of the second elastic member 102, the check pin 101 is inserted into the check hole 531 to lock the locking pin 51.

[0070] Reference Figure 2 、 Figure 5 and Figure 6 The filter assembly of the working group is connected to the air inlet of the hood 30 via a locking mechanism 40. When the high-pressure blower 20 is in operation, outside air passes through the filter plate 90 of the working group filter assembly and is filtered before entering the hood 30. The filtered air is then delivered to the air passage of the meltblowing die head by the high-pressure blower 20. In an optional embodiment, the specific structure of the locking mechanism 40 and the specific connection relationship between the locking mechanism 40, the filter assembly, and the hood 30 are as follows:

[0071] When the sixth rack 411 slides on the wind hood 30, it can drive the second wedge block 41 to extend and be inserted into the locking groove 811, or withdraw from the locking groove 811.

[0072] Reference Figure 5 and Figure 6 The disassembly mechanism 60 is provided on the air cover 30. The disassembly mechanism 60 can act on the filter assembly of the working group and disassemble the filter assembly of the working group from the air cover 30. In an optional embodiment, the specific structure of the disassembly mechanism 60 and the specific connection relationship between the disassembly mechanism 60 and the air cover 30 and the filter assembly are as follows:

[0073] The disassembly mechanism 60 includes a second gear 61, a slide 62, a fourth rack 63, a third gear 64, a fifth rack 65, a third elastic member 66, a drive assembly 67 and a magnet 68. The second gear 61 and the third gear 64 are rotatably provided on the wind cover 30. The slide 62 is slidably provided on the wind cover 30. A seventh rack 621 is provided on the slide 62. The sixth rack 411 and the seventh rack 621 are respectively engaged with the second gear 61. The fourth rack 63 and the fifth rack 65 are slidably provided on the wind cover 30 and respectively engaged with the third gear 64. The slide 62 can abut against the fourth rack 63, and the fifth rack 65 can abut against the filter frame 80 of the filter assembly of the working group.

[0074] The third elastic member 66 is provided on the wind shield 30 and acts on the slide 62. The third elastic member 66 can be a third compression spring. More specifically, a guide rod 623 is provided on the slide 62. The guide rod 623 slides through the wind shield 30. The third compression spring is sleeved on the guide rod 623. The two ends of the third compression spring respectively abut against the slide 62 and the wind shield 30.

[0075] The magnet 68 is fixed to the air hood 30 , and the sixth rack 411 can be adsorbed and connected to the magnet 68 . The seventh rack 621 is detachably engaged with the second gear 61 . When the seventh rack 621 is separated from the second gear 61 , the sixth rack 411 is adsorbed and connected to the magnet 68 .

[0076] The driving assembly 67 can act on the slide 62 and drive the slide 62 to slide. More specifically, referring to Figure 7 and Figure 8 The driving assembly 67 includes a push block 671 and a linear driving member 672. The linear driving member 672 is fixed on the wind hood 30 and connected to the push block 671. A push rod 622 is provided on the slide 62. The push block 671 is located on one side of the push rod 622 and can abut against the push rod 622. An avoidance groove 33 for avoiding the push rod 622 is provided on the wind hood 30. In this embodiment, the linear driving member 672 can adopt a linear cylinder module.

[0077] The working principle of removing and separating the filter assembly of the working group from the air cover 30 by the disassembly mechanism 60 is as follows:

[0078] The linear drive member 672 drives the push block 671 to push the push rod 622 and the slide 62 to slide. When the slide 62 slides, the seventh rack 621 and the second gear 61 drive the sixth rack 411 to slide, driving the second wedge block 41 to withdraw from the locking groove 811, unlocking the filter assembly of the working group and the air cover 30;

[0079] Then, the driving assembly 67 continues to push the slide 62 to slide. When the seventh rack 621 separates from the second gear 61, the sixth rack 411 slides to be adsorbed and connected with the magnet 68. Then, the driving assembly 67 continues to push the slide 62 to slide, and pushes the fourth rack 63 to slide. When the fourth rack 63 slides, the third gear 64 drives the fifth rack 65 to move toward the filter frame 80. The fifth rack 65 pushes the filter assembly of the working group to separate the filter assembly from the air cover 30. The frame 10 is provided with a through slot 11 for the filter assembly to fall after being disassembled and separated from the air cover 30.

[0080] When the filter assembly of the working group is separated from the wind cover 30, the push block 671 is driven to reset by the linear drive member 672, and then the slide 62 is reset under the elastic force of the third elastic member 66, and the seventh rack 621 re-engages with the second gear 61 and drives the second wedge block 41 to reset.

[0081] The embodiment of the present application also discloses a sound-absorbing cotton processing technology.

[0082] The sound-absorbing cotton processing technology is based on the sound-absorbing cotton processing equipment and includes the following steps:

[0083] In the melt-blown production process of sound-absorbing cotton, the air is filtered by the filter assembly of the working group, and then the filtered air is ejected from the air channel of the melt-blown die head through the high-pressure blower 20 and the heater to achieve the stretching of the melt-blown yarn. The filter assembly of the working group is periodically replaced by the sound-absorbing cotton processing equipment;

[0084] The method for periodically replacing the filter components of a working group through a sound-absorbing cotton processing device includes the following steps:

[0085] Step 1: Use the disassembly mechanism 60 to disassemble the filter assembly of the working group from the wind cover 30.

[0086] The linear drive member 672 drives the push block 671 to push the push rod 622 and the slide 62 to slide. When the slide 62 slides, the seventh rack 621 and the second gear 61 drive the sixth rack 411 to slide, driving the second wedge block 41 to withdraw from the locking groove 811, unlocking the filter assembly of the working group and the air cover 30;

[0087] The driving assembly 67 continues to push the slide 62 to slide, and pushes the fourth rack 63 to slide. When the fourth rack 63 slides, the third gear 64 drives the fifth rack 65 to move toward the filter frame 80, and the fifth rack 65 pushes the filter assembly of the working group to separate the filter assembly from the air cover 30.

[0088] Step 2: Use the moving assembly 70 to drive the filter assembly of the standby group to move closer to the air cover 30 until the protrusion 81 on the outermost filter assembly is plugged into the second groove 32 of the air cover 30, and the column 31 passes through the through holes 84 on the outermost and second outermost filter assemblies;

[0089] Step 3: Connect the filter assembly in the spare group closest to the air hood 30 to the air inlet of the air hood 30 through the locking mechanism 40.

[0090] When the protrusion 81 on the outermost filter assembly is plugged into the second groove 32 of the air cover 30, the second wedge block 41 is plugged into the locking groove 811, thereby fixing the filter assembly to the air cover 30.

[0091] When the column 31 penetrates into the through holes 84 on the outermost and second outermost filter assemblies, the column slides and abuts against the inclined surface of the first wedge block 541 on the second outermost filter assembly, and pushes the first wedge block 541 and the second rack 54 to slide relative to the protrusion 81. When the second rack 54 slides, the first rack 53 is driven to slide via the first gear 52, driving the locking pin 51 to withdraw from the locking hole 83 on the outermost filter assembly and retract into the protrusion 81, thereby unlocking the outermost filter assembly and the second outermost filter assembly in the spare group.

[0092] Step 4: Use the moving assembly 70 to drive the filter assemblies of the remaining spare groups to move away from the wind hood 30, so that the filter assemblies of the remaining spare groups are separated from the filter assemblies connected to the wind hood 30, and the replacement of the filter assemblies of the working group is completed.

[0093] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. Sound-absorbing cotton processing equipment, characterized in that, include: High pressure fan (20); An air hood (30), wherein the air outlet of the air hood (30) is in communication with the air inlet end of the high-pressure blower (20); Filter components, the filter components are provided in multiple groups, the multiple groups of filter components are divided into a working group and a standby group, the filter components of the working group are connected to the air inlet of the wind cover (30) through a locking mechanism (40), and the filter components of the standby group are detachably connected to each other through a connecting mechanism (50); a disassembly mechanism (60), the disassembly mechanism (60) being capable of acting on the filter assembly of the working group and disassembling the filter assembly of the working group from the wind shield (30); A moving assembly (70), the moving assembly (70) being connected to the filter assembly of the standby group, the moving assembly (70) being used to drive the filter assembly of the standby group to move closer to or away from the wind shield (30); The connecting mechanism (50) includes a locking pin (51), the filter assembly includes a filter frame (80) and a filter plate (90), the filter plate (90) is fixedly connected to the filter frame (80), the filter frame (80) is provided with a convex seat (81) and a first groove (82), the locking pin (51) is telescopically provided on the convex seat (81), the first groove (82) of the filter frame (80) is provided with a locking hole (83) on the inner wall, and the filter frame (80) of the filter assembly of the adjacent group in the spare group is plugged into the first groove (82) through the convex seat (81), and is plugged into the locking hole (83) through the locking pin (51); The filter frame (80) is provided with a through hole (84) passing through the convex seat (81) and the first groove (82), and the wind cover (30) is provided with a column (31). The column (31) can be inserted into the through hole (84) and act on the locking pin (51) to drive the locking pin (51) to withdraw from the locking hole (83) and retract into the convex seat (81).

2. The sound-absorbing cotton processing equipment according to claim 1, characterized in that: The connecting mechanism (50) further comprises a first gear (52), a first rack (53), a second rack (54) and a first elastic member (55), wherein the first gear (52) is rotatably mounted on the convex seat (81), the first rack (53) and the second rack (54) are slidably mounted on the convex seat (81) and respectively mesh with the first gear (52), the locking pin (51) is fixedly mounted on the first rack (53), the second rack (54) is provided with a first wedge block (541), the first elastic member (55) is mounted on the convex seat (81) and acts on the first rack (53) or the second rack (54), the first elastic member (55) is used to provide a force for pushing the locking pin (51) to extend relative to the convex seat (81), and when the column (31) is inserted into the through hole (84), it can slide and abut against the inclined surface of the first wedge block (541).

3. The sound-absorbing cotton processing equipment according to claim 2, characterized in that: The filter further comprises a non-return mechanism (100), wherein the non-return mechanism (100) comprises a non-return pin (101) and a second elastic member (102); a non-return hole (531) is provided on the first rack (53); the non-return pin (101) is slidably arranged on the filter frame (80) and can be plugged into the non-return hole (531); the second elastic member (102) is arranged on the filter frame (80) and acts on the non-return pin (101); the second elastic member (102) is used to provide a force for pushing the non-return pin (101) to be inserted into the non-return hole (531).

4. The sound-absorbing cotton processing equipment according to claim 1, characterized in that: The locking mechanism (40) includes a locking member, a second groove (32) is provided on the wind hood (30), the column (31) is located in the second groove (32), the convex seat (81) can be plugged into the second groove (32), the convex seat (81) is provided with a locking groove (811), and the locking member is telescopically provided on the wind hood (30). When the convex seat (81) is plugged into the second groove (32), the locking member can be plugged into the locking groove (811).

5. The sound-absorbing cotton processing equipment according to claim 4, characterized in that: The disassembly mechanism (60) includes a second gear (61), a slide (62), a fourth rack (63), a third gear (64), a fifth rack (65), a third elastic member (66) and a driving assembly (67), wherein the locking member is a second wedge block (41), a sixth rack (411) is provided on the second wedge block (41), the sixth rack (411) is slidably provided on the wind hood (30), the second gear (61) and the third gear (64) are rotatably provided on the wind hood (30), the slide (62) is slidably provided on the wind hood (30), a seventh rack (621) is provided on the slide (62), and the The sixth rack (411) and the seventh rack (621) are respectively engaged with the second gear (61); the fourth rack (63) and the fifth rack (65) are slidably arranged on the wind hood (30) and are respectively engaged with the third gear (64); the slide (62) can abut against the fourth rack (63); the fifth rack (65) can abut against the filter frame (80) of the filter assembly of the working group; the third elastic member (66) is arranged on the wind hood (30) and acts on the slide (62); the driving assembly (67) can act on the slide (62) and drive the slide (62) to slide.

6. The sound-absorbing cotton processing equipment according to claim 5, characterized in that: The disassembly mechanism (60) further includes a magnet (68), which is fixed on the wind hood (30). The sixth rack (411) can be adsorbed and connected to the magnet (68), and the seventh rack (621) can be detachably engaged with the second gear (61). When the seventh rack (621) is separated from the second gear (61), the sixth rack (411) is adsorbed and connected to the magnet (68).

7. The sound-absorbing cotton processing equipment according to claim 5, characterized in that: The driving assembly (67) includes a push block (671) and a linear driving member (672). The linear driving member (672) is fixed on the wind hood (30) and connected to the push block (671). A push rod (622) is provided on the sliding seat (62). The push block (671) is located on one side of the push rod (622) and can abut against the push rod (622).

8. Sound-absorbing cotton processing technology, characterized in that: The sound-absorbing cotton processing equipment according to claim 1 includes the following steps: In the melt-blown production process of sound-absorbing cotton, air is filtered by a filter component of a working group, and then the filtered air is ejected from an air channel of a melt-blown die head by a high-pressure blower (20) and a heater to achieve stretching of the melt-blown yarn, and the filter component of the working group is periodically replaced by the sound-absorbing cotton processing equipment; The method for periodically replacing the filter components of a working group through a sound-absorbing cotton processing device includes the following steps: Step 1: Using a disassembly mechanism (60), the filter assembly of the working group is disassembled from the wind cover (30); Step 2: driving the filter assembly of the standby group to move closer to the wind shield (30) through the moving assembly (70); Step 3: Connect the filter assembly of the spare group closest to the wind shield (30) to the air inlet of the wind shield (30) through the locking mechanism (40).

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