Cloth drying device for non-woven fabric production

Abstract

The invention relates to the technical field of cloth drying, in particular to a cloth drying device for non-woven fabric production. Comprising a drying box, and a traction frame is arranged in the drying box; the fixing shell is fixedly connected into the drying box, the fixing shell is connected with a plurality of fixing frames in a sliding mode, and the fixing frames are hinged to an air box; a connecting pipe is fixedly connected to the fixing frame, and a sliding pipe is connected into the connecting pipe in a sliding mode. The sliding rod is connected to the sliding pipe in a sliding manner; a connecting rod is fixedly connected to the sliding rod and provided with a rack, the air bellow is provided with a gear coaxial with the rotating center of the air bellow, and the gear is in meshing transmission with the rack of the connecting rod. In the non-woven fabric drying process, by changing the angle of the air bellow, adjusting the area, covered by hot air blown out of the air bellow, of the non-woven fabric and prolonging the contact time of the area, with the large water content, of the non-woven fabric and the hot air, the evaporation amount of water in the area of the non-woven fabric is increased, and the quality of the produced non-woven fabric is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of fabric drying, and in particular to a fabric drying device for producing non-woven fabrics. Background Art

[0002] Non-woven fabric is a fabric formed by orienting or randomly arranging short fibers or filaments to form a fiber web structure and then forming it by mechanical, thermal bonding or chemical means. The existing production methods of non-woven fabrics are mainly divided into: melt spinning method, hot air spinning method, high-pressure water jet method, needle punching method, etc. Among them, the high-pressure water jet method is to use a high-pressure water jet to impact the fiber web, so that the fibers in the fiber web are intertwined to form non-woven fabric. A large amount of water will be stored in the non-woven fabric produced by this method, and the non-woven fabric needs to be dried. When the existing drying device dries the non-woven fabric, hot air is blown onto the non-woven fabric to volatilize the moisture in the non-woven fabric to achieve drying. During the production of non-woven fabric, the fibers in the non-woven fabric are prone to uneven distribution. Moreover, the water used in the high-pressure water jet method for producing non-woven fabric is excessive water, so that the area with a large fiber thickness in the non-woven fabric absorbs more water, and the area with a small fiber thickness absorbs less water, resulting in uneven water content distribution in the non-woven fabric before drying. However, since the existing drying device mostly dries the non-woven fabric by directly blowing hot air in a fixed drying range to dry the moisture in it, if the drying device dries the area with a relatively high water content in the non-woven fabric, the moisture in the area with a relatively high water content in the non-woven fabric cannot be completely removed, resulting in incomplete drying of the non-woven fabric during the drying process, which affects the quality of the produced non-woven fabric. Summary of the Invention

[0003] The present invention provides a fabric drying device for producing non-woven fabrics, aiming to solve the drawback that the existing drying device cannot adjust its drying area according to the water content in different areas of the non-woven fabric, resulting in incomplete drying of the non-woven fabric.

[0004] The technical solution of the present invention is as follows: A fabric drying device for producing non-woven fabrics, comprising: a drying box, in which a traction frame is arranged; a fixed shell, fixedly connected inside the drying box, and a plurality of fixed frames are slidably connected to the fixed shell, and a wind box is hinged to the fixed frame; a plurality of connecting pipes, respectively fixedly connected to adjacent fixed frames, a sliding pipe is slidably connected inside the connecting pipe, the sliding pipe is communicated with the connecting pipe and a first spring is arranged between the two; a sliding rod, the number of which is the same as that of the sliding pipes, is respectively slidably connected to adjacent sliding pipes, and a second spring is arranged between the sliding rod and the sliding pipe; a connecting rod, the number of which is the same as that of the sliding rods, is respectively fixedly connected to adjacent sliding rods, a rack is arranged on the connecting rod, and a gear coaxial with the rotation center of the wind box is arranged on the wind box, and the gear is in meshing transmission with the rack of the connecting rod; a rotating assembly, the number of which is the same as that of the wind boxes, is respectively arranged on adjacent wind boxes for adjusting the area of the air outlet of the wind box; a detection mechanism, the number of which is the same as that of the wind boxes, is respectively arranged inside the drying box for detecting the moisture content in the non-woven fabric.

[0005] As a preference, the elastic coefficient of the first spring inside the connecting pipe is greater than the elastic coefficient of the second spring inside the sliding pipe.

[0006] As a preference, the rotating assembly includes: a sliding plate, slidably connected inside the wind box, a third spring is arranged between the sliding plate and the wind box, and a first soft rope is connected between the sliding plate and the sliding rod; an adjusting plate, hinged to the lower part of the sliding plate, a connecting plate is hinged to the wind box, the adjusting plate is slidably connected to the connecting plate, the adjusting plate is provided with a plurality of adjusting holes, and the connecting plate is provided with a plurality of first through holes, and the adjusting holes of the adjusting plate and the first through holes of the connecting plate are in communication and cooperation.

[0007] As a preference, the rotating assembly further includes: a wind shielding shell, the number of which is the same as that of the wind boxes, is respectively slidably connected to the outside of adjacent wind boxes, a first tension spring is arranged between the wind box and the wind shielding shell, and a second soft rope is connected between the wind shielding shell and the connecting rod, and the wind shielding shell is used for guiding the wind discharged from the wind box.

[0008] As a preference, the rotating assembly further includes: a lifting telescopic rod, the number of which is the same as that of the fixed frames, is respectively fixedly connected to adjacent fixed frames, the telescopic end of the lifting telescopic rod is fixedly connected to the fixed shell, and the connecting pipe is communicated with the lifting telescopic rod through a hose, and the lifting telescopic rod is used for driving the wind box to move.

[0009] As a preference, the detection mechanism includes: a sliding shell fixedly connected to the drying box; a detection tube slidably connected to the sliding shell; a detection shell fixedly connected and communicated with the detection tube, with a rectangular hole provided at the lower part of the detection shell; adjustment components, the number of which is the same as that of the detection shells, respectively arranged in adjacent detection tubes for reducing the swinging frequency of the air box; and transmission components, the number of which is the same as that of the detection tubes, all arranged on the fixed shell for changing the pressure in the connecting tube.

[0010] As a preference, the adjustment component includes: a detection plate slidably connected in the detection tube, with a second tension spring provided between the detection plate and the detection tube; a transmission frame slidably connected in the detection tube, the transmission frame being slidably connected to the detection plate, and a fourth spring being provided between the transmission frame and the detection tube, with a second through hole provided on the detection plate.

[0011] As a preference, the transmission component includes: a transmission shell fixedly connected in the fixed shell, the transmission shell being communicated with the detection tube through an air delivery pipe; a transmission rod slidably connected in the transmission shell, the transmission shell being provided with at least two third through holes, and at least one third through hole being provided with a one-way valve; a transmission plate rotatably connected to the fixed shell; a transmission telescopic rod fixedly connected to the fixed shell, the transmission telescopic rod being communicated with the connecting tube through a connecting pipe, the transmission plate being provided with two sliding grooves, and sliding blocks being slidably connected in both sliding grooves, the transmission rod being ball-jointed to the adjacent sliding block, and the telescopic end of the transmission telescopic rod being ball-jointed to the adjacent sliding block.

[0012] As a preference, the rotation center of the transmission plate is biased towards the transmission telescopic rod.

[0013] As a preference, the transmission component further includes: a delay plate slidably connected in the transmission shell, with a third tension spring provided between the delay plate and the transmission rod, and a fourth through hole being provided on one side of the transmission rod located in the transmission shell.

[0014] The present invention has the following advantages: 1. During the process of drying the non-woven fabric, by changing the angle of the air box, adjusting the area of the non-woven fabric covered by the hot air blown out by the air box, and increasing the contact time between the area with high water content in the non-woven fabric and the hot air, the evaporation amount of water in this area of the non-woven fabric is increased, ensuring the quality of the produced non-woven fabric.

[0015] 2. During the process of the gradually increasing swinging angle of the air box, the sliding plate drives the adjustment plate and the connecting plate to rotate, and relative movement occurs between the adjustment plate and the connecting plate, increasing the air output of the air box, thereby further accelerating the evaporation speed of water in the non-woven fabric.

[0016] 3. When detecting the moisture in the non-woven fabric, the present invention makes multiple detection shells contact the non-woven fabric simultaneously to detect different positions of the non-woven fabric, thereby adjusting the drying time for different positions of the non-woven fabric, and improving the drying effect of the non-woven fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 is a three-dimensional structural schematic diagram of the traction frame, fixed shell and detection shell of the present invention;

[0019] Figure 3 is a three-dimensional structural schematic diagram of the sliding shell, detection tube and detection shell of the present invention;

[0020] Figure 4 is a three-dimensional structural schematic diagram of the connecting pipe, wind shield shell and transmission shell of the present invention;

[0021] Figure 5 is a three-dimensional structural schematic diagram of the connecting pipe, sliding pipe and sliding rod of the present invention;

[0022] Figure 6 is a three-dimensional structural schematic diagram of the sliding plate, adjusting plate and lifting telescopic rod of the present invention;

[0023] Figure 7 is a three-dimensional structural schematic diagram of the sliding plate, adjusting plate and connecting plate of the present invention;

[0024] Figure 8 is a three-dimensional structural schematic diagram of the connecting pipe, sliding pipe and adjusting plate of the present invention;

[0025] Figure 9 is an exploded three-dimensional view of the air box, adjusting plate and connecting plate of the present invention;

[0026] Figure 10 is a cross-sectional three-dimensional view of the sliding shell, detection tube and detection shell of the present invention;

[0027] Figure 11 is an exploded three-dimensional view of the detection plate and transmission frame of the present invention;

[0028] Figure 12 is a three-dimensional structural schematic diagram of the transmission shell, transmission plate and transmission telescopic rod of the present invention;

[0029] Figure 13 is a three-dimensional structural schematic diagram of the transmission telescopic rod, sliding block and delay plate of the present invention.

[0030] Reference numerals: 1 - drying oven, 2 - traction frame, 3 - fixed housing, 4 - fixing frame, 5 - air box, 6 - connecting pipe, 7 - sliding pipe, 8 - sliding rod, 9 - connecting rod, 10 - sliding plate, 11 - adjusting plate, 12 - connecting plate, 13 - wind shield housing, 14 - lifting telescopic rod, 15 - sliding housing, 16 - detection pipe, 17 - detection housing, 18 - detection plate, 19 - transmission frame, 20 - transmission housing, 21 - transmission rod, 22 - transmission plate, 23 - transmission telescopic rod, 24 - sliding block, 25 - delay plate. Detailed implementation manners

[0031] The implementation manners of the present invention will be described below with reference to the accompanying drawings.

[0032] A fabric drying device for producing non-woven fabrics, as Figures 1 - 8 shown, includes a drying oven 1, in which a traction frame 2 is provided; a fixed housing 3, fixedly connected inside the drying oven 1, a plurality of fixing frames 4 are slidably connected to the fixed housing 3, and an air box 5 is hinged to the fixing frame 4; a plurality of connecting pipes 6, respectively fixedly connected to adjacent fixing frames 4, a sliding pipe 7 is slidably connected inside the connecting pipe 6, the sliding pipe 7 communicates with the connecting pipe 6 and a first spring is provided between the two; a plurality of sliding rods 8, the number of which is the same as that of the sliding pipes 7, are respectively slidably connected to adjacent sliding pipes 7, and a second spring is provided between the sliding rod 8 and the sliding pipe 7; a plurality of connecting rods 9, the number of which is the same as that of the sliding rods 8, are respectively fixedly connected to adjacent sliding rods 8, the connecting rod 9 is provided with a rack, and the air box 5 is provided with a gear coaxial with its rotation center, and this gear meshes and drives with the rack of the connecting rod 9; a plurality of rotating assemblies, the number of which is the same as that of the air boxes 5, are respectively arranged on adjacent air boxes 5 for adjusting the area of the air outlet of the air box 5; a plurality of detection mechanisms, the number of which is the same as that of the air boxes 5, are respectively arranged inside the drying oven 1 for detecting the moisture content in the non-woven fabric.

[0033] Furthermore, as Figure 7 and Figure 8 shown, the elastic coefficient of the first spring inside the connecting pipe 6 is greater than the elastic coefficient of the second spring inside the sliding pipe 7.

[0034] In the above solution, it aims to solve the problem that when drying non-woven fabrics with existing non-woven fabric drying equipment, it is impossible to adjust the drying time and drying range according to the moisture in the non-woven fabric, resulting in the problem that the non-woven fabric is prone to insufficient drying during the drying process. Rectangular holes are provided on both the left and right sides of the drying box 1, and the rectangular holes are used for the non-woven fabric to pass through. In this embodiment, there are two traction frames 2, which are respectively located on the left and right sides inside the drying box 1. The traction frame 2 is composed of two roller shafts and two support plates. Both of the two roller shafts are used to traction the non-woven fabric to move, and both of the two roller shafts use electric rotating shafts as power; the lower side of the fixed frame 4 is hinged with a wind box 5, and the air outlet of the wind box 5 initially faces downward. The wind box 5 is externally connected with a hot air blower, and the hot air blower is used to convey hot air into the fixed frame 4 and keep the pressure of the gas in the wind box 5 in a constant state; the elastic coefficient of the first spring is greater than that of the second spring. After the second spring in the sliding tube 7 is compressed to the limit, the sliding tube 7 moves relative to the connecting tube 6 to the right. During the process of the sliding rod 8 driving the connecting rod 9 to move to the right, the connecting rod 9 drives the wind box 5 to rotate through the rack on it, so that the direction of the hot air blown out by the wind box 5 is changed, thereby adjusting the area of the non-woven fabric dried by the wind box 5; a rotating assembly is used to adjust the area of the air outlet of the wind box 5, so as to further adjust the area of the non-woven fabric dried by the wind box 5; the detection mechanism is used to detect the moisture content in the non-woven fabric, extract the gas in the connecting tube 6, and adjust the angle of the wind box 5, so that the wind box 5 increases the drying time of the area with a large water content in the non-woven fabric.

[0035] Working process: For the convenience of understanding, the following description is based on the gradual increase in the water content in the non-woven fabric, and with Figure 2 the moving direction of the front wind box 5 and its upper parts as a reference. During the production of non-woven fabrics, when it is necessary to dry the non-woven fabric, the staff passes the non-woven fabric through the two traction frames 2 and the detection mechanism. After the non-woven fabric is placed, the staff starts the detection mechanism, the hot air blower of the wind box 5 and the traction frame 2 in sequence. The traction frame 2 drives the non-woven fabric to move from left to right. The detection mechanism detects the water content of adjacent areas in the non-woven fabric through negative pressure, and the wind box 5 blows out hot air to dry the non-woven fabric. During this process, when the water content in the non-woven fabric increases, the gaps between the fibers in the non-woven fabric decrease, and the air permeability of the non-woven fabric decreases, resulting in a decrease in the amount of gas extracted by the detection mechanism through the non-woven fabric. The detection mechanism extracts the gas in the connecting tube 6, reduces the air pressure in the connecting tube 6 and the sliding tube 7, the sliding rod 8 drives the connecting rod 9 to move to the right and compresses the second spring in the sliding tube 7, the connecting rod 9 drives the rack on it to move to the right, and the rack drives the gear of the wind box 5 to rotate clockwise (as Figure 3 shown in the perspective), so that the lower part of the wind box 5 swings to the left, increasing the area of contact between the hot air blown out by the wind box 5 and the non-woven fabric and the contact time with the hot air, thereby increasing the evaporation amount of the moisture in the non-woven fabric. During this process, the rotating assembly adjusts the air output of each part of the wind box 5 to make the dried area of the non-woven fabric evenly heated.

[0036] Further, as Figures 6 - 9 shown, the rotating assembly includes: a sliding plate 10, which is slidably connected inside the air box 5. A third spring is arranged between the sliding plate 10 and the air box 5, and a first soft rope is connected between the sliding plate 10 and the sliding rod 8; an adjusting plate 11, which is hinged to the lower part of the sliding plate 10. A connecting plate 12 is hinged to the air box 5. The adjusting plate 11 is slidably connected to the connecting plate 12. The adjusting plate 11 is provided with a plurality of adjusting holes, and the connecting plate 12 is provided with a plurality of first through holes. The adjusting holes of the adjusting plate 11 and the first through holes of the connecting plate 12 are in communication and cooperation.

[0037] The above solution is used to adjust the air output at each position inside the air box 5, so that the non-woven fabric is uniformly heated, preventing the non-woven fabric from being damaged due to concentrated heat. The sliding plate 10 is located on the left side of the air box 5. The third spring of the sliding plate 10 is in a compressed state initially. The first soft rope between the sliding plate 10 and the sliding rod 8 passes through the air box 5, the connecting pipe 6 and the sliding pipe 7 in sequence. When the sliding rod 8 moves to the right, the pulling force of the first soft rope on the sliding plate 10 decreases, causing the sliding plate 10 to move downward; the adjusting plate 11 is located above the connecting plate 12. The adjusting holes of the adjusting plate 11 are evenly distributed thereon. The first through holes of the connecting plate 12 are evenly distributed thereon. And the adjusting holes of the adjusting plate 11 are oval, and the area of the adjusting holes decreases as the distance between it and the sliding plate 10 increases. It is used to make the exhaust volume of the left part of the air box 5 through the adjusting holes on the adjusting plate 11 greater than the exhaust volume of the gas discharged through the first through holes on the connecting plate 12 on its right side after the air box 5 rotates. Ensure that when the hot air discharged passes through the diffusion and contacts the corresponding area of the non-woven fabric, it still contains the same heat as other positions. Initially, the first through holes of the connecting plate 12 block the adjusting holes on the adjusting plate 11. After the hot air in the air box 5 passes through the adjusting holes of the adjusting plate 11, it needs to pass through the first through holes on the connecting plate 12 to be discharged. When the sliding plate 10 moves downward, the adjusting plate 11 moves leftward relative to the connecting plate 12, and the connecting plate 12 no longer blocks the adjusting holes on the left part of the adjusting plate 11, so that the hot air in the air box 5 can be discharged through the adjusting holes on the left part of the adjusting plate 11 and the first through holes of the connecting plate 12, thereby increasing the air output of the air box 5, and at the same time, the shape of the adjusting holes makes the air output on the left side of the air box 5 greater than that on the right side.

[0038] Further, as Figures 3 - 5 shown, the rotating assembly further includes: a wind shielding shell 13, the number of which is the same as that of the air boxes 5, and they are respectively slidably connected to the outside of adjacent air boxes 5. A first tension spring is arranged between the air box 5 and the wind shielding shell 13, and a second soft rope is connected between the wind shielding shell 13 and the connecting rod 9. The wind shielding shell 13 is used to guide the wind discharged from the air box 5.

[0039] The above solution is used to direct the hot air blown out by the bellows 5, reducing the diffusion amount of the hot air to the surroundings during the flow process. The shape of the wind shield 13 is a rectangular frame, which is used to direct the hot air blown out by the bellows 5 at the beginning, reducing the amount of hot air diffusing to the surroundings, so that the hot air blown out by the bellows 5 is concentrated on the non-woven fabric. The first tension spring of the wind shield 13 is in a stretched state initially, providing power for the downward movement of the wind shield 13 relative to the bellows 5.

[0040] Workflow: Initially, when the hot air in the bellows 5 is discharged, it first passes through the adjustment holes on the adjustment plate 11, and then passes through the first through holes on the connecting plate 12 and is discharged. At this time, the adjustment holes of the adjustment plate 11 are blocked by the connecting plate 12, so that the actual air output of the bellows 5 is the same as the air discharge volume of the first through holes on the connecting plate 12. During the process of the above-mentioned sliding rod 8 driving the connecting rod 9 to move to the right, the pulling force of the first soft rope on the sliding rod 8 on the sliding plate 10 decreases, and the sliding plate 10 moves downward under the push of the third spring. The sliding plate 10 drives the left part of the adjustment plate 11 to move downward, causing both the adjustment plate 11 and the connecting plate 12 to rotate relative to the bellows 5, reducing the distance between the air outlet position on the left part of the bellows 5 after rotation and the non-woven fabric. During this process, the adjustment plate 11 moves leftward relative to the connecting plate 12, so that the connecting plate 12 no longer blocks the adjustment holes on the left part of the adjustment plate 11. At this time, the hot air of the bellows 5 is discharged through the first through holes of the connecting plate 12 and the adjustment holes on the left part of the adjustment plate 11, increasing the air discharge volume of the bellows 5, thereby accelerating the evaporation of moisture in the non-woven fabric. During this process, the pulling force of the connecting rod 9 on the wind shield 13 through the second soft rope decreases, and the wind shield 13 moves downward together with the sliding plate 10 under the action of the first tension spring, ensuring that the hot air in the bellows 5 can only be discharged from the adjustment holes of the adjustment plate 11 and the first through holes of the connecting plate 12. At the same time, after the wind shield 13 moves, it directs the gas discharged from the adjustment plate 11 and the connecting plate 12, reducing the amount of hot air diffusing to the surroundings, thereby increasing the amount of hot air in contact with the non-woven fabric, and thus ensuring the drying efficiency.

[0041] Further, as Figure 5 and Figure 6 shown, the rotating assembly further includes: lifting telescopic rods 14, the number of which is the same as the number of the fixing frames 4, and are respectively fixedly connected to adjacent fixing frames 4. The telescopic ends of the lifting telescopic rods 14 are fixedly connected to the fixed shell 3, and the connecting pipe 6 is communicated with the lifting telescopic rods 14 through a hose. The lifting telescopic rods 14 are used to drive the bellows 5 to move.

[0042] The above solution aims to reduce the diffusion of the hot air blown out by the bellows 5 to the surroundings. The upper part of the lifting telescopic rod 14 is connected to the left side of the connecting pipe 6 through a hose. The sliding pipe 7 is composed of a circular pipe and a circular ring, and the thickness of the circular ring on the sliding pipe 7 is greater than the diameter of the hose on the connecting pipe 6, so that the connection part is initially blocked by the sliding pipe 7. When the sliding rod 8 moves to the right relative to the sliding pipe 7, the connecting pipe 6 cannot extract the gas in the lifting telescopic rod 14. When the sliding pipe 7 moves to the right relative to the connecting pipe 6, the connecting pipe 6 extracts the gas in the lifting telescopic rod 14, and during the continuous rotation of the bellows 5, the telescopic end of the lifting telescopic rod 14 drives the fixed frame 4 to move downward.

[0043] Workflow: During the drying of the non-woven fabric above, as the water content in the non-woven fabric continues to increase until the sliding rod 8 cannot move to the right relative to the sliding pipe 7, the pressure in the connecting pipe 6 continues to decrease, and the sliding pipe 7 drives the sliding rod 8 to move to the right, compressing the first spring in the connecting pipe 6. At this time, the sliding pipe 7 releases the blockage of the connection between the connecting pipe 6 and the lifting telescopic rod 14. As the sliding pipe 7 moves to the right, the connecting pipe 6 extracts the gas in the upper part of the lifting telescopic rod 14, causing the lifting telescopic rod 14 to drive the fixed frame 4 and the parts thereon to move downward, thereby reducing the distance between the bellows 5 and the non-woven fabric and increasing the drying efficiency of the bellows 5 on the non-woven fabric. After the non-woven fabric is dried, the staff closes the above-mentioned opened parts, the pressure in the connecting pipe 6 is restored, and the sliding rod 8 drives the connecting rod 9 to move back to its original position, causing the bellows 5 to rotate in the reverse direction and reset under the action of the gear and the rack.

[0044] Further, as Figure 3 、 Figure 4 and Figure 10 shown, the detection mechanism includes: a sliding shell 15, fixedly connected to the drying box 1; a detection pipe 16, slidably connected to the sliding shell 15; a detection shell 17, fixedly connected and communicated with the detection pipe 16, and a rectangular hole is provided at the lower part of the detection shell 17; adjustment components, the number of which is the same as that of the detection shells 17, are respectively arranged in adjacent detection pipes 16 for reducing the swinging frequency of the bellows 5; transmission components, the number of which is the same as that of the detection pipes 16, are all arranged on the fixed shell 3 for changing the pressure in the connecting pipe 6.

[0045] Further, as Figure 4 、 Figure 10 and Figure 11 shown, the adjustment component includes: a detection plate 18, slidably connected in the detection pipe 16, and a second tension spring is arranged between the detection plate 18 and the detection pipe 16; a transmission frame 19, slidably connected in the detection pipe 16, the transmission frame 19 is slidably connected to the detection plate 18, and a fourth spring is arranged between the transmission frame 19 and the detection pipe 16, and a second through hole is provided on the detection plate 18.

[0046] ​​The above solution aims to detect the water content in different areas of the non-woven fabric. The sliding shell 15 is used to adjust the position of the detection tube 16, so that the detection tube 16 can drive the detection shell 17 to move up and down, and the height of the detection shell 17 can change with the thickness of the non-woven fabric, thereby reducing the extrusion force between the detection shell 17 and the non-woven fabric. A support roller can be arranged on the lower side of the detection shell 17, and the support roller supports the non-woven fabric at the lower side position of the detection shell 17 during the detection process to ensure that the detection shell 17 can contact the non-woven fabric; an air pump is externally connected to the detection tube 16, and the air pump extracts the gas in the detection tube 16, so that the detection shell 17 generates a suction force on the non-woven fabric through negative pressure; the detection shell 17 absorbs air from the outside through the rectangular hole and the gaps between the fibers in the non-woven fabric. When the water content in the non-woven fabric is high, the gaps between the fibers decrease, and the gas absorbed by the detection shell 17 through the non-woven fabric decreases, and the air pressure in the detection tube 16 decreases; the adjustment component is used to adjust the pressure in the detection tube 16 and make the pressure of the gas in the connecting tube 6 unchanged before the gas pressure in the detection tube 16 decreases to a specified value; the transmission component is used to amplify the acting force generated by the negative pressure of the gas in the detection tube 16.

[0047] The detection plate 18 is composed of two first circular plates and a first circular rod. The second tension spring is located between the first circular plate at the lower part inside the detection plate 18 and the detection tube 16. A second circular plate that divides the detection tube 16 itself into upper and lower chambers is arranged inside the detection tube 16. After the pressure in the lower chamber inside the detection tube 16 decreases, the detection plate 18 moves downward, and the two first circular plates of the detection plate 18 are respectively located in the two chambers of the detection tube 16. The first circular rod inside the detection plate 18 is slidably connected to the second circular plate of the detection tube 16; the transmission frame 19 is composed of two third circular rods and two third circular plates. The first circular plate at the upper part of the detection plate 18 is located between the two third circular plates of the transmission frame 19. The first circular plate at the upper part of the detection plate 18 is provided with a second through hole, and there is a gap between the third circular plate at the lower part of the transmission frame 19 and the first circular plate at the upper part of the detection plate 18. The above-mentioned second through hole and the gap are both used to enable the detection plate 18 to move up and down relative to the transmission frame 19. When the change in the water content in the non-woven fabric is small, the gap is used to buffer the detection plate 18 and prevent the detection plate 18 from driving the transmission frame 19 to move, thereby reducing the swing frequency of the bellows 5.

[0048] Workflow: After starting to dry the non-woven fabric, the staff activates the air pump. The air pump extracts the gas from the lower chamber inside the detection tube 16. The detection tube 16 extracts gas from the outside through the detection shell 17, and the two are in a balanced state. When the water content of the non-woven fabric increases, the rate at which the detection shell 17 extracts gas from the outside decreases, and the air pressure in the lower chamber of the detection tube 16 decreases. The detection plate 18 moves downward and stretches the second tension spring. At this time, if the increase in the water content in the non-woven fabric is small, as the detection plate 18 moves downward, the gap between the first circular plate on the upper part of the detection plate 18 and the third circular plate on the lower part of the transmission frame 19 decreases. When the pulling force of the negative pressure in the lower chamber of the detection tube 16 on the detection plate 18 and the pulling force of the second tension spring on the detection plate 18 reach equilibrium, the detection plate 18 stops moving, and the detection plate 18 does not contact the transmission frame 19. If the increase in the water content in the non-woven fabric is large, as the detection plate 18 continues to move downward, when the first circular plate on the upper part of the detection plate 18 contacts the third circular plate on the lower part of the transmission frame 19, the detection plate 18 squeezes the transmission frame 19 downward and drives it to move downward. The downward movement of the transmission frame 19 causes the transmission component to extract the gas from the connecting tube 6. At the same time, the transmission frame 19 moves to compress the fourth spring, and the bellows 5 swings by repeating the above process. After the water content of the non-woven fabric decreases, the detection plate 18 moves upward and resets under the drive of the second tension spring, the transmission frame 19 resets under the push of the fourth spring, and the bellows 5 resets.

[0049] Further, as Figure 4 , Figure 5 , Figure 12 and Figure 13 shown, the transmission component includes: a transmission shell 20, fixedly connected to the fixed shell 3. The transmission shell 20 is communicated with the detection tube 16 through an air delivery tube; a transmission rod 21, slidably connected to the transmission shell 20. The transmission shell 20 is provided with at least two third through holes, and at least one third through hole is provided with a one-way valve; a transmission plate 22, rotatably connected to the fixed shell 3; a transmission telescopic rod 23, fixedly connected to the fixed shell 3. The transmission telescopic rod 23 is communicated with the connecting tube 6 through a communicating tube. The transmission plate 22 is provided with two sliding grooves, and sliding blocks 24 are slidably connected in both sliding grooves. The transmission rod 21 is ball-jointed with the adjacent sliding block 24, and the telescopic end of the transmission telescopic rod 23 is ball-jointed with the adjacent sliding block 24.

[0050] Further, as Figure 5 , Figure 12 and Figure 13 shown, the rotation center of the transmission plate 22 is biased towards the transmission telescopic rod 23.

[0051] Further, as Figure 13 shown, the transmission component further includes: a delay plate 25, slidably connected inside the transmission shell 20. A third tension spring is arranged between the delay plate 25 and the transmission rod 21. A fourth through hole is arranged on one side of the transmission rod 21 located inside the transmission shell 20.

[0052] The above solution aims to amplify the acting force generated by the negative pressure in the detection tube 16. The left part of the transmission case 20 is communicated with the upper chamber of the detection tube 16 through an air delivery pipe. When the transmission frame 19 moves downward, the upper chamber of the detection tube 16 extracts the gas in the transmission case 20. The transmission rod 21 is composed of a slide plate and a slide bar. The slide plate of the transmission rod 21 divides the transmission case 20 into left and right chambers. There are two third through holes provided in the right part of the transmission case 20, and a one-way valve is provided in one of the third through holes. The one-way valve opens when gas enters the transmission case 20 and closes when the gas in the transmission case 20 is discharged. The rotation center of the transmission plate 22 is located at a position biased towards the transmission telescopic rod 23 on it. The ratio of the connection line between the front end and the rotation center of the transmission plate 22 to the connection line between the rear end and the rotation center of the transmission plate 22 is 1:4, which is used to reduce the force required for the transmission rod 21 to drive the telescopic end of the transmission telescopic rod 23 to move through the transmission plate 22. The left side of the fixed part of the transmission telescopic rod 23 is communicated with the connection pipe 6 through a communication pipe, which is used to extract the gas in the connection pipe 6. The delay plate 25 is located on the left side of the transmission rod 21. A fourth through hole is provided on the slide plate of the transmission rod 21. The fourth through hole on the transmission rod 21 is used to communicate the gap between it and the delay plate 25 with the outside world, reducing the resistance when the delay plate 25 moves leftward. The third tension spring is used to slow down the moving speed of the transmission rod 21 moving leftward.

[0053] Working process: When the above-mentioned transmission frame 19 moves downward, the upper chamber of the detection tube 16 extracts the gas in the transmission case 20, and the air pressure in the left chamber in the transmission case 20 decreases, causing the delay plate 25 to move leftward and drive the transmission rod 21 to move synchronously through the third tension spring. During this process, the third tension spring is stretched, reducing the moving speed of the transmission rod 21. The transmission rod 21 moves leftward, and the right chamber of the transmission case 20 extracts the gas from the outside through the third through hole and the one-way valve on it. The transmission rod 21 drives the transmission plate 22 to rotate counterclockwise through the sliding block 24 ( Figure 11 , viewed from top to bottom). The transmission plate 22 presses the telescopic end of the transmission telescopic rod 23 through the sliding block 24 on its front side, causing the telescopic end of the transmission telescopic rod 23 to retract and extracting the gas in the connection pipe 6, so that the bellows 5 rotates repeatedly in the above process. During this process, both sliding blocks on the transmission plate 22 move towards the direction of its rotation center. When the transmission frame 19 moves upward and resets, the delay plate 25 pushes the transmission rod 21 to reset through the third tension spring. At this time, the one-way valve on the transmission case 20 closes, and the transmission rod 21 slowly moves rightward to reset, the transmission plate 22 rotates reversely to reset, and the telescopic end of the transmission telescopic rod 23 moves to reset.

[0054] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable those familiar with this technology to understand the content of the present invention and implement it accordingly, and cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A cloth drying device for producing nonwoven fabrics, characterized in that: Included are: A drying box (1), wherein a traction frame (2) is arranged inside the drying box (1); A fixed shell (3) is fixedly connected to the drying box (1); the fixed shell (3) is slidably connected to a plurality of fixed frames (4); and the fixed frames (4) are hingedly connected to a bellows (5); A plurality of connecting tubes (6) are respectively fixed to adjacent fixing frames (4); a sliding tube (7) is slidably connected inside the connecting tube (6); the sliding tube (7) is in communication with the connecting tube (6) and a first spring is provided between the two; Sliding rods (8), the number of which is the same as the number of the sliding tubes (7), and are respectively slidably connected to adjacent sliding tubes (7), and a second spring is provided between the sliding rods (8) and the sliding tubes (7); The number of connecting rods (9) is the same as that of the sliding rods (8), and they are respectively fixed to adjacent sliding rods (8). The connecting rods (9) are provided with racks, and the bellows (5) is provided with a gear coaxial with its rotation center, and the gear meshes with the racks of the connecting rods (9) for transmission; Rotating components, the number of which is the same as the number of the bellows (5), are respectively arranged on adjacent bellows (5) and are used to adjust the area of ​​the air outlet of the bellows (5); The detection mechanisms, the number of which is the same as the number of the bellows (5), are respectively arranged in the drying box (1) and are used to detect the moisture content in the non-woven fabric.

2. A cloth drying device for producing nonwoven fabrics according to claim 1, characterized in that: The elastic coefficient of the first spring in the connecting tube (6) is greater than the elastic coefficient of the second spring in the sliding tube (7).

3. A cloth drying device for producing nonwoven fabrics according to claim 1, characterized in that: The rotating assembly comprises: a sliding plate (10) slidably connected in the bellows (5), a third spring being arranged between the sliding plate (10) and the bellows (5), and a first soft rope being connected between the sliding plate (10) and the sliding rod (8); An adjusting plate (11) is hingedly connected to the lower part of the sliding plate (10); the bellows (5) is hingedly connected to a connecting plate (12); the adjusting plate (11) is slidably connected to the connecting plate (12); the adjusting plate (11) is provided with a plurality of adjusting holes; the connecting plate (12) is provided with a plurality of first through holes; the adjusting holes of the adjusting plate (11) and the first through holes of the connecting plate (12) are connected and matched.

4. A cloth drying device for producing nonwoven fabrics according to claim 3, characterized in that: The rotating assembly also includes: The number of windshield shells (13) is the same as the number of the bellows (5), and they are respectively slidably connected to the outer sides of adjacent bellows (5). A first tension spring is provided between the bellows (5) and the windshield shell (13), and a second soft rope is connected between the windshield shell (13) and the connecting rod (9). The windshield shell (13) is used to guide the wind discharged from the bellows (5).

5. A cloth drying device for producing nonwoven fabrics according to claim 4, characterized in that: The rotating assembly also includes: The lifting and telescopic rods (14) are the same in number as the fixing frames (4) and are respectively fixedly connected to adjacent fixing frames (4). The telescopic ends of the lifting and telescopic rods (14) are fixedly connected to the fixing shell (3), and the connecting pipe (6) is connected to the lifting and telescopic rods (14) through a hose. The lifting and telescopic rods (14) are used to drive the bellows (5) to move.

6. A cloth drying device for producing nonwoven fabrics according to claim 5, characterized in that: The detection mechanism includes: A sliding shell (15) fixedly connected to the drying box (1); A detection tube (16) slidably connected to the sliding shell (15); A detection shell (17) is fixedly connected to and communicated with the detection tube (16), and a rectangular hole is provided at the lower portion of the detection shell (17); Adjustment components, the number of which is the same as the number of the detection shells (17), are respectively arranged in adjacent detection tubes (16) and are used to reduce the frequency of the swing of the bellows (5); The transmission components, the number of which is the same as the number of the detection tubes (16), are arranged on the fixed shell (3) and are used to change the pressure in the connecting tube (6).

7. A cloth drying device for producing nonwoven fabrics according to claim 6, characterized in that: The adjustment component includes: A detection plate (18) is slidably connected in the detection tube (16), and a second tension spring is provided between the detection plate (18) and the detection tube (16); A transmission frame (19) is slidably connected in the detection tube (16), the transmission frame (19) is slidably connected to the detection plate (18), a fourth spring is provided between the transmission frame (19) and the detection tube (16), and a second through hole is provided on the detection plate (18).

8. A cloth drying device for producing nonwoven fabrics according to claim 7, characterized in that: The transmission assembly comprises: A transmission housing (20) is fixedly connected to the fixed housing (3), and the transmission housing (20) is connected to the detection tube (16) via an air supply pipe; A transmission rod (21) is slidably connected to the transmission housing (20); the transmission housing (20) is provided with at least two third through holes, and a one-way valve is provided in at least one of the third through holes; A transmission plate (22) rotatably connected to the fixed shell (3); A transmission telescopic rod (23) is fixedly connected to the fixed shell (3); the transmission telescopic rod (23) is connected to the connecting pipe (6) via a connecting pipe; the transmission plate (22) is provided with two sliding grooves; sliding blocks (24) are slidably connected in the two sliding grooves; the transmission rod (21) is ball-connected to an adjacent sliding block (24); and the telescopic end of the transmission telescopic rod (23) is ball-connected to an adjacent sliding block (24).

9. A cloth drying device for producing nonwoven fabrics according to claim 8, characterized in that: The rotation center of the transmission plate (22) is biased towards the transmission telescopic rod (23).

10. A cloth drying device for producing nonwoven fabrics according to claim 8, characterized in that: The transmission assembly also includes: A delay plate (25) is slidably connected in the transmission housing (20), a third tension spring is provided between the delay plate (25) and the transmission rod (21), and a fourth through hole is provided on one side of the transmission rod (21) located in the transmission housing (20).

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