Annular silencing net weaving device

Abstract

The invention relates to the technical field of weaving equipment, and particularly discloses an annular silencing net weaving device which comprises a supporting frame, a discharging mechanism, a weaving mechanism and a receiving mechanism are arranged on the supporting frame, the weaving mechanism is used for weaving, the discharging mechanism is located above the weaving mechanism and used for conveying flat raw materials into the weaving mechanism, and the receiving mechanism is located above the weaving mechanism and used for receiving the flat raw materials. The material receiving mechanism is located below the weaving mechanism and used for receiving the annular silencing net, the weaving mechanism comprises a weaving mold base, a winding sleeve and a first driving assembly, and the weaving mold base is vertically and fixedly connected to the supporting frame and used for weaving operation; the winding sleeve is rotationally arranged on the weaving mold base in a sleeving mode and used for feeding flat raw materials into the weaving mold base along a surrounding track, the first driving assembly is arranged on the supporting frame and used for driving the winding sleeve to rotate, and the discharging mechanism rotates along with rotation of the winding sleeve. The weaving quality of the annular silencing net is improved, so that the effect of improving the silencing effect is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of knitting equipment, and in particular to a knitting device for an annular sound-absorbing net. Background Art

[0002] Sound-absorbing nets are widely used in many fields. For example, in industrial production, they can reduce the noise generated by machine operation and minimize the harm of noise to the environment and operators. In the construction field, they can improve the indoor acoustic environment and enhance the comfort of living and working. In the transportation field, they can be used inside vehicles such as cars and airplanes to reduce noise interference during driving. With the continuous improvement of noise control requirements in various industries, the requirements for the performance of sound-absorbing nets are also becoming increasingly stringent. In recent years, the relevant technical fields have been exploring how to improve the sound-absorbing effect of sound-absorbing nets to better meet market demands.

[0003] In the past, the raw materials for knitting sound-absorbing nets usually used wire rods with a circular cross-section. This method is relatively traditional and common, with relatively mature technology and relatively simple operation. To improve the sound-absorbing effect, flat raw materials are currently used to knit sound-absorbing nets, and the laminated arrangement of the flat raw materials is used to enhance the sound-absorbing performance.

[0004] However, when using flat raw materials to knit an annular sound-absorbing net, the knitting process requires a rotating operation, which causes the flat raw materials to twist during the discharging process. The twisted flat raw materials for knitting will lead to a decline in knitting quality, thereby reducing the sound-absorbing effect. This problem urgently needs to be improved. Summary of the Invention

[0005] In order to improve the knitting quality of the annular sound-absorbing net, thereby facilitating the improvement of the sound-absorbing effect, the present application provides a knitting device for an annular sound-absorbing net.

[0006] The knitting device for an annular sound-absorbing net provided by the present application adopts the following technical solutions: A knitting device for an annular sound-absorbing net includes a support frame, on which a discharging mechanism, a knitting mechanism, and a material collecting mechanism are provided. The knitting mechanism is used for knitting operations. The discharging mechanism is located above the knitting mechanism and is used to convey flat raw materials into the knitting mechanism. The material collecting mechanism is located below the knitting mechanism and is used to collect the annular sound-absorbing net. The knitting mechanism includes a knitting die base, a winding sleeve, and a first driving component. The knitting die base is vertically fixedly connected to the support frame for knitting operations. The winding sleeve is rotatably sleeved on the knitting die base and is used to feed the flat raw materials into the knitting die base along a circumferential trajectory. The first driving component is provided on the support frame and is used to drive the winding sleeve to rotate. The discharging mechanism rotates with the rotation of the winding sleeve.

[0007] By adopting the above technical solution, the support frame supports the discharging mechanism, the weaving mechanism and the material receiving mechanism. When it is necessary to weave a ring-shaped sound-absorbing net with flat raw materials, the discharging mechanism conveys the flat raw materials into the weaving mechanism. The first driving assembly drives the wire winding sleeve to rotate around the weaving die base, so that the flat raw materials entering the weaving die base are woven into a ring-shaped sound-absorbing net. The woven ring-shaped sound-absorbing net is collected by the material receiving mechanism, thus completing the entire automatic weaving process of the ring-shaped sound-absorbing net. During this process, the discharging mechanism rotates with the rotation of the wire winding sleeve, so that the flat raw materials conveyed out of the discharging mechanism always enter the weaving die base straight for weaving operations. It is difficult for the flat raw materials to be twisted during the discharging process, which is beneficial to improving the weaving quality of the ring-shaped sound-absorbing net and thus beneficial to improving the sound-absorbing effect.

[0008] Preferably, the first driving assembly includes a first driving motor, a first driving gear, a first driven gear and a first toothed belt. The first driving motor is arranged on the support frame. The first driving gear is fixedly sleeved on the output shaft of the first driving motor. The first driven gear is fixedly sleeved on the wire winding sleeve. The first toothed belt is wound around and meshed with the first driving gear and the first driven gear.

[0009] By adopting the above technical solution, the rotation of the output shaft of the first driving motor drives the first driving gear to rotate. The rotation of the first driving gear drives the first driven gear to rotate through the first toothed belt. The rotation of the first driven gear drives the wire winding sleeve to rotate, so as to realize the rotation of the wire winding sleeve around the weaving die base, so as to realize the circumferential feeding of the flat raw materials entering the weaving die base and thus weave them into a ring-shaped sound-absorbing net.

[0010] Preferably, the discharging mechanism includes a connecting assembly, a discharging plate and a discharging roller. The discharging roller is rotatably connected to the discharging plate. The flat raw materials are wound around the discharging roller. The upper end of the connecting assembly is connected to the discharging plate, and the lower end of the connecting assembly is connected to the wire winding sleeve.

[0011] By adopting the above technical solution, the flat raw materials are discharged as the discharging roller rotates. The discharging plate is connected to the wire winding sleeve through the connecting assembly, so that the discharging plate rotates with the rotation of the wire winding sleeve. The rotating discharging plate drives the flat raw materials discharged from the discharging roller to rotate, so that the discharging angle of the flat raw materials matches the weaving angle of the weaving die base. It is difficult for the flat raw materials to be twisted during the process of entering the weaving die base.

[0012] Preferably, the connecting assembly includes a connecting plate and a connecting rod. The lower end of the connecting rod is fixedly connected to the wire winding sleeve. The connecting plate is fixedly connected to the upper end of the connecting rod. The discharging plate is fixedly connected to the connecting plate. The connecting plate is provided with a wire passing hole for the flat raw materials to pass through.

[0013] By adopting the above technical solution, the discharge plate is fixed on the connecting plate, the connecting plate is fixed on the connecting rod, and the connecting rod is fixed on the wire winding sleeve, so that the discharge plate is fixed on the wire winding sleeve. The flat raw material passes through the wire passing hole and enters the knitting die base. The discharge roller on the discharge plate rotates with the rotation of the wire winding sleeve to avoid the twisting phenomenon of the flat raw material during the feeding process.

[0014] Preferably, the discharge plate is provided with a tensioning assembly for tensioning the flat raw material conveyed out. The tensioning assembly includes a connecting seat, a support rod, a tensioning wheel and a tensioning spring. The connecting seat is fixedly connected to the discharge plate. The support rod is fixedly connected to the connecting seat. Limiting blocks are arranged at both ends of the support rod. The tensioning wheel and the tensioning spring are both sleeved on the support rod and located between the two limiting blocks. The flat raw material conveyed out from the discharge roller bypasses the tensioning wheel and then enters the knitting mechanism. The tensioning spring is always in a compressed state, and the tensioning wheel is in an offset state with the wire passing hole.

[0015] By adopting the above technical solution, the connecting seat connects the support rod, the tensioning wheel and the tensioning spring to the discharge plate. The flat raw material is discharged from the discharge roller, bypasses the tensioning wheel, passes through the wire passing hole and then enters the knitting die base for knitting operation. The tensioning spring is always in a compressed state and the tensioning wheel is in an offset state with the wire passing hole to tension the flat raw material. When the flat raw material shows a slack phenomenon, the restoring force of the tensioning spring pushes the tensioning wheel to move along the length direction of the support rod, and the tensioning wheel is offset from the wire passing hole to re-tighten the flat raw material, which is beneficial to improving the stability of the flat raw material discharge and further beneficial to improving the knitting quality of the annular sound-absorbing net.

[0016] Preferably, the material receiving mechanism includes a pulling component, a flattening component and a material receiving box. The pulling component is located below the knitting mechanism and is used to pull the knitted annular sound-absorbing net downward. The flattening component is located below the pulling component and is used to flatten the annular sound-absorbing net. The material receiving box is located below the flattening component and is used to collect the flattened annular sound-absorbing net.

[0017] By adopting the above technical solution, the pulling component pulls away the knitted part of the annular sound-absorbing net from below the knitting mechanism, so as to facilitate the subsequent knitting operation of the flat raw material in the knitting die base. The pulled annular sound-absorbing net enters the flattening component, and the flattening component flattens the annular sound-absorbing net, which is beneficial to reducing the occupied space of the annular sound-absorbing net, so as to facilitate collecting the annular sound-absorbing net in the material receiving box, and the flattened annular sound-absorbing net is convenient for subsequent storage and transportation.

[0018] Preferably, the material pulling assembly includes a first material pulling roller, a second material pulling roller, and a second driving assembly. The first material pulling roller and the second material pulling roller are rotatably arranged in parallel below the knitting mechanism. There is a gap between the first material pulling roller and the second material pulling roller for the knitted annular sound-absorbing net to pass through. The second driving assembly is arranged on the support frame to drive the first material pulling roller to rotate. When the annular sound-absorbing net passes through the gap between the first material pulling roller and the second material pulling roller, the roller surfaces of the first material pulling roller and the second material pulling roller respectively abut against two opposite surfaces of the annular sound-absorbing net.

[0019] By adopting the above technical solution, the knitted annular sound-absorbing net passes through the gap between the first material pulling roller and the second material pulling roller, and the roller surfaces of the first material pulling roller and the second material pulling roller respectively abut against two opposite surfaces of the annular sound-absorbing net. When the second driving assembly drives the first material pulling roller to rotate, the first material pulling roller drives the annular sound-absorbing net to move downward, and the second material pulling roller rotates in the opposite direction to the first material pulling roller, which is beneficial to improving the stability and smoothness of the material pulling process, and the pre-flattening action during the material pulling operation is beneficial to improving the accuracy of the flattening position of the subsequent flattening assembly during the flattening operation.

[0020] Preferably, the flattening assembly includes a plurality of flattening rollers and a third driving assembly for driving the plurality of flattening rollers to rotate. The plurality of flattening rollers are rotatably arranged in parallel below the material pulling assembly. The rotation directions of adjacent two flattening rollers are opposite, and there is a gap for the annular sound-absorbing net to pass through between adjacent two flattening rollers. The annular sound-absorbing net is cross-threaded through the gaps between adjacent two flattening rollers.

[0021] By adopting the above technical solution, the annular sound-absorbing net is cross-threaded through the gaps between adjacent two flattening rollers. The third driving assembly drives the flattening rollers to rotate, and the rotation directions of adjacent two flattening rollers are opposite, so that the annular sound-absorbing net undergoes multiple flattening operations, which is beneficial to improving the flatness of the annular sound-absorbing net after the flattening operation.

[0022] Preferably, the third driving assembly includes a third driving motor, a third driving gear, a third driven gear, and a third toothed belt. The third driving motor is arranged on the support frame. The third driving gear is fixedly sleeved on the output shaft of the third driving motor. The third driven gear is coaxially and fixedly sleeved on one of the flattening rollers. The third toothed belt is wound around and meshed with the third driving gear and the third driven gear. Each flattening roller is coaxially provided with a synchronous gear, and the synchronous gears on adjacent two flattening rollers are meshed with each other in pairs.

[0023] By adopting the above technical solution, the rotation of the output shaft of the third driving motor drives the rotation of the third driving gear. The third driving gear drives the rotation of the third driven gear through the third toothed belt. The rotation of the third driven gear drives the rotation of a flattening roller. Then, the synchronous gears on two adjacent flattening rollers are meshed with each other in pairs to realize the synchronous rotation of several flattening rollers, and the rotation directions of two adjacent flattening rollers are opposite, so that the annular sound-absorbing net that is cross-threaded through the gap between two adjacent flattening rollers undergoes multiple flattening operations.

[0024] Preferably, the second driving assembly includes a second driving gear, a second driven gear and a second toothed belt. The second driving gear is fixedly sleeved on one of the flattening rollers. The second driven gear is fixedly sleeved on the first material pulling roller. The second toothed belt is wound around and meshed with the second driving gear and the second driven gear.

[0025] By adopting the above technical solution, the rotation of the conveying shaft of the third driving motor drives the rotation of the flattening roller. The rotation of the flattening roller drives the rotation of the second driving gear. The rotation of the second driving gear drives the rotation of the second driven gear through the second toothed belt. The second driven gear then drives the rotation of the first material pulling roller, thereby realizing the material pulling action on the annular sound-absorbing net. Moreover, the material pulling operation and the flattening operation share the third driving motor as the power source, which is beneficial to reducing the production cost.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By providing a discharging mechanism, a weaving mechanism and a material collecting mechanism, when it is necessary to weave an annular sound-absorbing net with a flat raw material, the discharging mechanism conveys the flat raw material into the weaving mechanism. The first driving assembly drives the winding sleeve to rotate around the weaving die base, so that the flat raw material entering the weaving die base is woven into an annular sound-absorbing net. The woven annular sound-absorbing net is collected by the material collecting mechanism, thereby completing the entire automatic weaving process of the annular sound-absorbing net. During this process, the discharging mechanism rotates with the rotation of the winding sleeve in the weaving mechanism, so that the flat raw material conveyed from the discharging mechanism always enters the weaving die base straightly for weaving operation. It is difficult for the flat raw material to be twisted during the discharging process, which is beneficial to improving the weaving quality of the annular sound-absorbing net and thus beneficial to improving the sound-absorbing effect.

[0027] 2. Through the first driving motor, the first driving gear, the first driven gear and the first toothed belt, the rotation of the output shaft of the first driving motor drives the rotation of the first driving gear. The rotation of the first driving gear drives the rotation of the first driven gear through the first toothed belt. The rotation of the first driven gear drives the rotation of the winding sleeve, so as to realize the rotation of the winding sleeve around the weaving die base, so as to realize the surrounding feeding of the flat raw material entering the weaving die base and thus weave it into an annular sound-absorbing net.

[0028] 3. By setting up a connecting seat, a support rod, a tensioning wheel and a tensioning spring, the flat raw material exits from the discharging roller, bypasses the tensioning wheel, then passes through the wire passing hole and enters the knitting die base for knitting operation. The tensioning spring is always in a compressed state and the tensioning wheel and the wire passing hole are in an offset state to tension the flat raw material. When the flat raw material shows a slack phenomenon, the restoring force of the tensioning spring pushes the tensioning wheel to move along the length direction of the support rod, and the offset between the tensioning wheel and the wire passing hole reinserts the flat raw material to be tightened, which is conducive to improving the stability of the flat raw material discharging and further conducive to improving the knitting quality of the annular sound-absorbing net. Description of the Drawings

[0029] Figure 1 is the overall structural schematic diagram of the annular sound-absorbing net knitting device in the embodiment of the present application.

[0030] Figure 2 is Figure 1 the enlarged view of part A in

[0031] Figure 3 is Figure 1 the enlarged view of part B in

[0032] Figure 4 is the structural schematic diagram of another perspective of the annular sound-absorbing net knitting device in the embodiment of the present application.

[0033] Figure 5 is Figure 4 the enlarged view of part C in

[0034] Description of the Reference Numerals: 1, support frame; 2, discharging mechanism; 21, connecting component; 211, connecting plate; 212, connecting rod; 22, discharging plate; 23, discharging roller; 3, knitting mechanism; 31, knitting die base; 32, winding sleeve; 33, first driving component; 331, first driving motor; 332, first driving gear; 333, first driven gear; 334, first toothed belt; 4, material receiving mechanism; 41, pulling component; 411, first pulling roller; 412, second pulling roller; 413, second driving component; 4131, second driving gear; 4132, second driven gear; 4133, second toothed belt; 42, flattening component; 421, flattening roller; 422, third driving component; 4221, third driving motor; 4222, third driving gear; 4223, third driven gear; 4224, third toothed belt; 43, material receiving box; 5, wire passing hole; 6, tensioning component; 61, connecting seat; 62, support rod; 63, tensioning wheel; 64, tensioning spring; 7, limiting block; 8, synchronous gear; 9, wire guiding plate. Detailed Embodiment

[0035] The following further elaborates on the present application in conjunction with the attached Figures 1-5 drawings for a more detailed description.

[0036] An embodiment of the present application discloses a circular sound-absorbing net weaving device. Referring to Figure 1 , it includes a support frame 1. An unloading mechanism 2, a weaving mechanism 3, and a material collecting mechanism 4 are sequentially arranged on the support frame 1 from top to bottom. The weaving mechanism 3 is used for weaving operations. The unloading mechanism 2 is located above the weaving mechanism 3 and is used to convey the flat raw material into the weaving mechanism 3. The material collecting mechanism 4 is located below the weaving mechanism 3 and is used to collect the circular sound-absorbing net, thereby completing the entire automatic weaving process of the circular sound-absorbing net.

[0037] Referring to Figure 1 , the unloading mechanism 2 includes an unloading plate 22 and an unloading roller 23. The unloading plate 22 is arranged in a U shape to horizontally support the unloading roller 23. Both ends of the unloading roller 23 are rotatably connected to both sides of the unloading plate 22. The flat raw material is wound around the unloading roller 23. As the unloading roller 23 rotates, the flat raw material is conveyed out of the unloading roller 23 and enters the weaving mechanism 3 for weaving operations.

[0038] Referring to Figure 1 and Figure 2 , the weaving mechanism 3 includes a weaving die base 31, a winding sleeve 32, and a first driving component 33. The weaving die base 31 is located below the unloading roller 23 and is vertically fixedly connected to the support frame 1 to perform weaving operations on the flat raw material entering it. The winding sleeve 32 is rotatably sleeved on the weaving die base 31 and is used to feed the flat raw material into the weaving die base 31 along a circular trajectory, thereby realizing the circular weaving process of the sound-absorbing net. It should be noted that the weaving principle of the weaving die base 31 is the same as that of existing weaving equipment and will not be elaborated here. The first driving component 33 is arranged on the support frame 1 and is used to drive the winding sleeve 32 to rotate.

[0039] Referring to Figure 1 and Figure 2, the first driving assembly 33 includes a first driving motor 331, a first driving gear 332, a first driven gear 333 and a first toothed belt 334. The first driving motor 331 is vertically and fixedly arranged on the support frame 1, and the output shaft of the first driving motor 331 is arranged vertically upward. The first driving gear 332 is fixedly sleeved on the output shaft of the first driving motor 331, the first driven gear 333 is fixedly sleeved on the winding sleeve 32, the first driving gear 332 and the first driven gear 333 are located on the same horizontal plane, and the first toothed belt 334 is wound around and engaged with the first driving gear 332 and the first driven gear 333, so that the rotation of the output shaft of the first driving motor 331 can drive the first driving gear 332 to rotate. The rotation of the first driving gear 332 drives the first driven gear 333 to rotate through the first toothed belt 334, so as to realize the rotation of the first driven gear 333 driving the winding sleeve 32 to rotate around the braiding die base 31. It should be noted that a wire guiding plate 9 is fixedly arranged on the winding sleeve 32. The flat raw material passes through the wire guiding plate 9 and then enters the braiding die base 31. The wire guiding plate 9 rotates with the rotation of the winding sleeve 32 to realize pouring the flat raw material into the braiding die base 31 along the circumferential track for annular braiding operation.

[0040] Refer to Figure 1 , the discharging mechanism 2 rotates with the rotation of the winding sleeve 32, so that the conveyed flat raw material matches the rotating circumferential movement, thereby avoiding the twisting phenomenon of the flat raw material during the discharging process. Specifically, the discharging mechanism 2 further includes a connecting assembly 21. The upper end of the connecting assembly 21 is connected to the discharging plate 22, and the lower end of the connecting assembly 21 is connected to the winding sleeve 32, so that the rotating winding sleeve 32 drives the discharging plate 22 to rotate synchronously through the connecting assembly 21, so that the discharged flat raw material rotates synchronously.

[0041] Refer to Figure 1 and Figure 2 , the connecting assembly 21 includes a connecting plate 211 and a connecting rod 212. The connecting rod 212 is arranged vertically. The lower end of the connecting rod 212 is fixedly connected to the winding sleeve 32. The connecting plate 211 is arranged horizontally. The connecting plate 211 is fixedly connected to the upper end of the connecting rod 212. The discharging plate 22 is fixedly connected to the connecting plate 211. In this embodiment, the number of the connecting rods 212 is set to three, and the three connecting rods 212 are evenly spaced on the circumferential side of the winding sleeve 32 to improve the connection stability. In addition, the connecting plate 211 is provided with a wire passing hole 5 for the flat raw material to pass through.

[0042] Refer to Figure 1 and Figure 3, a tensioning assembly 6 for tensioning the flat raw material conveyed out is provided on the discharge plate 22. Specifically, the tensioning assembly 6 includes a connecting seat 61, a support rod 62, a tensioning wheel 63 and a tensioning spring 64. The connecting seat 61 is arranged in an L shape, and the bottom of the connecting seat 61 is fixedly connected to the discharge plate 22. The support rod 62 is arranged horizontally, and the support rod 62 is vertically and fixedly connected to the side wall of the connecting seat 61. Limiting blocks 7 are fixedly arranged at both ends of the support rod 62. The tensioning wheel 63 and the tensioning spring 64 are both sleeved on the support rod 62 and located between the two limiting blocks 7. The flat raw material conveyed out from the discharge roller 23 bypasses the tensioning wheel 63 and enters the knitting mechanism 3 after passing through the wire passing hole 5. It should be noted that the tensioning spring 64 is always in a compressed state, and the tensioning wheel 63 and the wire passing hole 5 are in an offset state. When the flat raw material becomes loose during the discharging process, the restoring force of the tensioning spring 64 pushes the tensioning wheel 63 to move along the length direction of the support rod 62, and the tensioning wheel 63 and the wire passing hole 5 continuously deviate to tension the flat raw material, which is beneficial to improving the stability of the feeding of the flat raw material and thus beneficial to improving the knitting quality.

[0043] Refer to Figure 4 , the completed part of the annular sound-absorbing net is discharged from below the knitting die base 31, and the receiving mechanism 4 flattens and receives the completed part of the annular sound-absorbing net. Specifically, the receiving mechanism 4 includes a pulling component 41, a flattening component 42 and a receiving box 43. The pulling component 41 is located below the knitting mechanism 3 and is used to pull the completed annular sound-absorbing net downward. The flattening component 42 is located below the pulling component 41 and is used to flatten the annular sound-absorbing net. The receiving box 43 is located below the flattening component 42 and is used to collect the flattened annular sound-absorbing net.

[0044] Refer to Figure 4 and Figure 5 , the pulling component 41 includes a first pulling roller 411, a second pulling roller 412 and a second driving component 413. The first pulling roller 411 and the second pulling roller 412 are arranged parallel and rotatable below the knitting mechanism 3. There is a gap between the first pulling roller 411 and the second pulling roller 412 for the completed annular sound-absorbing net to pass through. The first pulling roller 411 and the second pulling roller 412 rotate towards each other to pull the annular sound-absorbing net downward. The second driving component 413 is arranged on the support frame 1 and is used to drive the first pulling roller 411 to rotate. When the annular sound-absorbing net passes through the gap between the first pulling roller 411 and the second pulling roller 412, the roller surfaces of the first pulling roller 411 and the second pulling roller 412 respectively abut against the opposite two surfaces of the annular sound-absorbing net. The second driving component 413 drives the first pulling roller 411 to rotate. Due to the action of friction, the second pulling roller 412 also rotates and rotates in the opposite direction to the first pulling roller 411.

[0045] Refer to Figure 4 andFigure 5 , the flattening assembly 42 includes a plurality of flattening rollers 421 and a third driving assembly 422 for driving the plurality of flattening rollers 421 to rotate. In this embodiment, the number of flattening rollers 421 is set to four. The four flattening rollers 421 are arranged in parallel rotation below the material pulling assembly 41 and are located on the same horizontal plane. The rotation directions of adjacent two flattening rollers 421 are opposite. There is a gap for the annular sound-absorbing net to pass through between adjacent two flattening rollers 421. The annular sound-absorbing net is successively and crosswise passed through the gaps between adjacent two flattening rollers 421, so that the annular sound-absorbing net undergoes three flattening operations and then falls into the material collection box 43 for collection, to improve the flatness of the annular sound-absorbing net, so as to facilitate subsequent storage and transportation.

[0046] Refer to Figure 4 and Figure 5 , the third driving assembly 422 includes a third driving motor 4221, a third driving gear 4222, a third driven gear 4223 and a third toothed belt 4224. The third driving motor 4221 is horizontally and fixedly arranged on the support frame 1, and the output shaft of the third driving motor 4221 is parallel to the flattening roller 421. The third driving gear 4222 is fixedly sleeved on the output shaft of the third driving motor 4221. The third driven gear 4223 is coaxially and fixedly sleeved on a flattening roller 421, and the third driving gear 4222 and the third driven gear 4223 are located on the same vertical plane. The third toothed belt 4224 is wound around and meshed with the third driving gear 4222 and the third driven gear 4223, so that the rotation of the output shaft of the third driving motor 4221 drives the third driving gear 4222 to rotate. The rotation of the third driving gear 4222 drives the third driven gear 4223 to rotate through the third toothed belt 4224, and the rotation of the third driven gear 4223 drives a flattening roller 421 to rotate. It is worth mentioning that a synchronous gear 8 is coaxially and fixedly arranged at the end of each flattening roller 421, and the synchronous gears 8 on adjacent two flattening rollers 421 are meshed with each other in pairs, so that the rotation of one flattening roller 421 can drive the four flattening rollers 421 to rotate, and the rotation directions of adjacent two flattening rollers 421 are opposite.

[0047] Refer to Figure 4 and Figure 5, the second driving component 413 includes a second driving gear 4131, a second driven gear 4132 and a second toothed belt 4133. The second driving gear 4131 is fixedly sleeved on the flattening roller 421 sleeved with the third driven gear 4223. The second driven gear 4132 is fixedly sleeved on the first material pulling roller 411. And the second driving gear 4131 and the second driven gear 4132 are located on the same vertical plane. The second toothed belt 4133 is wound around and meshed with the second driving gear 4131 and the second driven gear 4132, so that when the third driving motor 4221 drives the third driven gear 4223 to rotate, the second driving gear 4131 can be synchronously driven to rotate. The rotation of the second driving gear 4131 drives the second driven gear 4132 to rotate through the second toothed belt 4133. The rotation of the second driven gear 4132 drives the first material pulling roller 411 to rotate. The material pulling operation and the flattening operation share the third driving motor 4221 as the power source, which is beneficial to reducing the production cost.

[0048] The implementation principle of a ring-shaped sound-absorbing net weaving device according to an embodiment of the present application is as follows: When using a flat raw material to perform the weaving operation of the ring-shaped sound-absorbing net, the discharging roller 23 rotates to discharge the flat raw material. The flat raw material passes through the wire passing hole 5 and then enters the weaving die base 31 for weaving operation. The first driving motor 331 drives the winding sleeve 32 to rotate to drive the flat raw material to perform a ring-shaped weaving operation along the surrounding track. During this process, the winding sleeve 32 drives the discharging plate 22 to rotate synchronously through the connecting rod 212 and the connecting plate 211. The conveyed flat raw material rotates synchronously so that the discharging angle of the flat raw material matches the weaving angle of the weaving die base 31. It is difficult for the flat raw material to be twisted during the process of entering the weaving die base 31, which is beneficial to improving the weaving quality of the ring-shaped sound-absorbing net and thus beneficial to improving the sound-absorbing effect.

[0049] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A circular sound-absorbing net weaving device, characterized in that: It includes a support frame (1), on which a discharging mechanism (2), a weaving mechanism (3) and a material collecting mechanism (4) are arranged. The weaving mechanism (3) is used for performing weaving operations. The discharging mechanism (2) is located above the weaving mechanism (3) and is used for conveying flat raw materials into the weaving mechanism (3). The material collecting mechanism (4) is located below the weaving mechanism (3) and is used for collecting the annular sound-absorbing net. The weaving mechanism (3) includes a weaving die base (31), a winding sleeve (32) and a first driving component (33). The weaving die base (31) is vertically and fixedly connected to the support frame (1) for performing weaving operations. The winding sleeve (32) is rotatably sleeved on the weaving die base (31) and is used for feeding flat raw materials into the weaving die base (31) along a circumferential trajectory. The first driving component (33) is arranged on the support frame (1) and is used for driving the winding sleeve (32) to rotate. The discharging mechanism (2) rotates with the rotation of the winding sleeve (32).

2. The annular sound-absorbing net knitting device according to claim 1, characterized in that: The first driving component (33) includes a first driving motor (331), a first driving gear (332), a first driven gear (333) and a first toothed belt (334). The first driving motor (331) is arranged on the support frame (1). The first driving gear (332) is fixedly sleeved on the output shaft of the first driving motor (331). The first driven gear (333) is fixedly sleeved on the winding sleeve (32). The first toothed belt (334) is wound around and meshes with the first driving gear (332) and the first driven gear (333).

3. A circular sound-absorbing net weaving device according to claim 1, characterized in that: The discharging mechanism (2) includes a connecting component (21), a discharging plate (22) and a discharging roller (23). The discharging roller (23) is rotatably connected to the discharging plate (22). Flat raw materials are wound around the discharging roller (23). The upper end of the connecting component (21) is connected to the discharging plate (22), and the lower end of the connecting component (21) is connected to the winding sleeve (32).

4. A circular sound-absorbing net weaving device according to claim 3, characterized in that: The connecting component (21) includes a connecting plate (211) and a connecting rod (212). The lower end of the connecting rod (212) is fixedly connected to the winding sleeve (32). The connecting plate (211) is fixedly connected to the upper end of the connecting rod (212). The discharging plate (22) is fixedly connected to the connecting plate (211). The connecting plate (211) is provided with a wire passing hole (5) for flat raw materials to pass through.

5. The annular sound-absorbing net knitting device according to claim 4, characterized in that: The discharge plate (22) is provided with a tensioning assembly (6) for tensioning the flat raw material conveyed out. The tensioning assembly (6) includes a connecting seat (61), a support rod (62), a tensioning wheel (63) and a tensioning spring (64). The connecting seat (61) is fixedly connected to the discharge plate (22). The support rod (62) is fixedly connected to the connecting seat (61). Limiting blocks (7) are arranged at both ends of the support rod (62). The tensioning wheel (63) and the tensioning spring (64) are both sleeved on the support rod (62) and located between the two limiting blocks (7). The flat raw material conveyed out from the discharge roller (23) bypasses the tensioning wheel (63) and then enters the knitting mechanism (3). The tensioning spring (64) is always in a compressed state, and the tensioning wheel (63) is in an offset state with respect to the wire passing hole (5).

6. The annular sound-absorbing net knitting device according to claim 1, wherein: The material collecting mechanism (4) includes a material pulling assembly (41), a flattening assembly (42) and a material collecting box (43). The material pulling assembly (41) is located below the knitting mechanism (3) and is used to pull the knitted annular sound-absorbing net downward. The flattening assembly (42) is located below the material pulling assembly (41) and is used to flatten the annular sound-absorbing net. The material collecting box (43) is located below the flattening assembly (42) and is used to collect the flattened annular sound-absorbing net.

7. A circular sound-absorbing net weaving device according to claim 6, characterized in that: The material pulling assembly (41) includes a first material pulling roller (411), a second material pulling roller (412) and a second driving assembly (413). The first material pulling roller (411) and the second material pulling roller (412) are arranged in parallel and rotatably below the knitting mechanism (3). There is a gap between the first material pulling roller (411) and the second material pulling roller (412) for the knitted annular sound-absorbing net to pass through. The second driving assembly (413) is arranged on the support frame (1) and is used to drive the first material pulling roller (411) to rotate. When the annular sound-absorbing net passes through the gap between the first material pulling roller (411) and the second material pulling roller (412), the roller surfaces of the first material pulling roller (411) and the second material pulling roller (412) respectively abut against the two opposite surfaces of the annular sound-absorbing net.

8. The braiding device for an annular sound-absorbing net according to claim 7, characterized in that: The flattening assembly (42) includes a plurality of flattening rollers (421) and a third driving assembly (422) for driving the plurality of flattening rollers (421) to rotate. The plurality of flattening rollers (421) are arranged in parallel and rotatably below the material pulling assembly (41). The rotation directions of adjacent two flattening rollers (421) are opposite, and there is a gap between adjacent two flattening rollers (421) for the annular sound-absorbing net to pass through. The annular sound-absorbing net is cross-passed through the gaps between adjacent two flattening rollers (421).

9. The annular sound-absorbing net weaving device according to claim 8, characterized in that: The third driving component (422) includes a third driving motor (4221), a third driving gear (4222), a third driven gear (4223) and a third toothed belt (4224). The third driving motor (4221) is arranged on the support frame (1). The third driving gear (4222) is fixedly sleeved on the output shaft of the third driving motor (4221). The third driven gear (4223) is coaxially and fixedly sleeved on one of the flattening rollers (421). The third toothed belt (4224) is wound around and meshed with the third driving gear (4222) and the third driven gear (4223). A synchronizing gear (8) is coaxially arranged on each flattening roller (421), and the synchronizing gears (8) on two adjacent flattening rollers (421) are meshed with each other in pairs.

10. A circular sound-absorbing net weaving device according to claim 8, characterized in that: The second driving component (413) includes a second driving gear (4131), a second driven gear (4132) and a second toothed belt (4133). The second driving gear (4131) is fixedly sleeved on one of the flattening rollers (421). The second driven gear (4132) is fixedly sleeved on the first material pulling roller (411). The second toothed belt (4133) is wound around and meshed with the second driving gear (4131) and the second driven gear (4132).

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