Composite cloth hot melt equipment

Abstract

The application provides a compound cloth hot melting device, which comprises a first conveying mechanism, a second conveying mechanism and at least one hot melting device, at least one hot melting station is arranged on a conveying path of the first conveying mechanism, the first conveying mechanism receives compound cloth to be hot melted and conveys the compound cloth to the hot melting station along a first horizontal direction; one hot melting device is arranged at each hot melting station, the hot melting device adopts a hot air circulation heating mode to perform hot melting treatment on the compound cloth at the hot melting station; the second conveying mechanism is connected to the first conveying mechanism, the second conveying mechanism receives the hot melted compound cloth on the first conveying mechanism and conveys the received compound cloth to a next process, a horizontal hot melting mode is provided, damage of the compound cloth caused by a pulling force in the hot melting process is effectively avoided, meanwhile, the hot air exerts downward pressure on the compound cloth at the hot melting station, and the compound cloth is ensured to be stably attached to a conveying surface of the first conveying mechanism.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabric hot melt composite technology, and in particular to a composite fabric hot melt equipment. Background Technology

[0002] Thermal fusion bonding technology, a key process in the processing of nonwoven fabrics, typically involves applying heat to thermoplastic nonwoven fabrics or their composite layers, causing the surface or intermediate structure to melt and soften, followed by pressure bonding to achieve structural connection and functional integration. This technology is widely used in medical protective materials, absorbent products, and filter composite materials, and its fusion effect directly affects the physical strength, functional uniformity, and overall consistency of the product.

[0003] In existing technologies, hot air circulation heating is typically used in hot melt equipment to continuously and uniformly heat-treat materials to form composite fabrics. Existing hot melt equipment usually includes a rotary screen, with the nonwoven fabric conveyed by conveyor rollers in conjunction with the screen for hot melt treatment. However, for some relatively thin and lightweight composite fabrics, the rotary screen and conveyor rollers can easily exert tensile forces on the fabric, especially at high temperatures. This results in poor structural stability of the composite fabric, making it susceptible to tearing or breakage due to these tensile forces. Utility Model Content

[0004] The purpose of this application is to provide a composite fabric hot-melt device to solve the problem that the composite fabric is easily torn and damaged during the hot-melt operation of the existing technology.

[0005] To achieve this objective, the following technical solution is adopted in this application:

[0006] This application provides a composite fabric hot-melt equipment, which includes a first conveying mechanism, a second conveying mechanism, and at least one hot-melt device, wherein:

[0007] At least one hot-melting station is provided on the conveying path of the first conveying mechanism. The first conveying mechanism is configured to receive the composite fabric to be hot-melted and convey the received composite fabric to the hot-melting station along the first horizontal direction.

[0008] Each hot-melting station is equipped with a hot-melting device, which is configured to perform hot-melting treatment on the composite fabric at the hot-melting station.

[0009] The second conveying mechanism connects to the first conveying mechanism. The first conveying mechanism is also configured to convey the hot-melted composite fabric toward the second conveying mechanism along a first horizontal direction. The second conveying mechanism is configured to receive the hot-melted composite fabric conveyed by the first conveying mechanism and convey the received composite fabric to the next process.

[0010] Optionally, the first conveying mechanism includes a first frame, a first conveyor belt, and a first drive assembly, wherein:

[0011] The first conveyor belt has a plurality of first ventilation holes evenly distributed on it. The first frame extends along the first horizontal direction. The first conveyor belt is rotatably mounted on the first frame and extends along the second horizontal direction. The first conveyor belt is configured to support the composite fabric. The first drive assembly is configured to drive the first conveyor belt to rotate, thereby conveying the composite fabric along the first horizontal direction.

[0012] Optionally, each hot-melt device includes a housing, a heater, a fan, and a first air guide assembly, wherein:

[0013] A heating chamber is provided at the top of the housing. The heater is configured to heat the air in the heating chamber to a preset temperature. The fan is configured to send the heated air to the first air guide assembly. The first air guide assembly is located inside the housing and above the hot melt station. The first air guide assembly is configured to uniformly guide the heated air to the surface of the composite fabric at the hot melt station to perform hot melt treatment on the composite fabric at the hot melt station.

[0014] Optionally, the hot-melt device further includes an air supply assembly, a circulation chamber, and a second air guide assembly, wherein:

[0015] The fan draws hot air from the heating chamber while simultaneously creating negative pressure within the chamber.

[0016] The air supply component is located above the heating chamber and is configured to supply air to the heating chamber.

[0017] The circulation chamber is disposed between the upper and lower belts of the first conveyor belt, extending along the second horizontal direction. The circulation chamber is configured to receive hot air flowing through the first conveyor belt and the composite fabric. The second air guide assembly is disposed on the side of the housing, extending along the first horizontal direction. The second air guide assembly is configured to transport part of the gas in the circulation chamber to the heating chamber through the negative pressure in the heating chamber.

[0018] Optionally, the first conveying mechanism further includes an adsorption component, which is disposed on the first frame at the fabric inlet end of the first conveying mechanism and located between one side of the belt above and one side of the belt below the first conveying mesh belt. The adsorption end of the adsorption component faces upward and extends along the second horizontal direction. The adsorption component is configured to draw air above the conveying surface of the first conveying mesh belt through the first vent hole to form a negative pressure that adsorbs the composite fabric to be heat-melted onto the conveying surface of the first conveying mesh belt.

[0019] Optionally, the first conveying mechanism further includes an air blowing assembly, which is disposed on the first frame at the fabric outlet end of the first conveying mechanism and located between one side belt body above and one side belt body below the first conveying mesh belt. The air blowing end of the air blowing assembly faces upward and extends along the second horizontal direction. The air blowing assembly is configured to blow air towards the conveying surface of the conveying mesh belt through the first vent hole to blow the hot-melted composite fabric away from the conveying surface of the conveying mesh belt.

[0020] Optionally, the second conveying mechanism includes a second frame, a second conveyor belt, and a second drive assembly, wherein:

[0021] The second conveyor belt has several second ventilation holes evenly distributed on it. The second frame is arranged parallel to the first frame along the first horizontal direction and close to the fabric outlet end of the first conveying mechanism. The second conveyor belt is rotatably mounted on the second frame. The second conveyor belt is configured to receive the hot-melted composite fabric sent by the first conveying mechanism. The second drive assembly is configured to drive the second conveyor belt to rotate, thereby conveying the composite fabric along the first horizontal direction.

[0022] Optionally, the second conveying mechanism also includes a cooling component. The cooling component is mounted on the second frame and located between the upper and lower belts of the second conveyor belt. The air extraction end of the cooling component faces upward. The cooling component is configured to draw air from above the hot-melted composite fabric on the conveyor belt through the air extraction end, so that the air above the conveyor belt flows quickly through the composite fabric, thereby cooling and curing the hot-melted composite fabric.

[0023] Optionally, the first air guiding assembly includes a connecting assembly, several sets of first air distribution assemblies, and two first air guiding channels, wherein:

[0024] Two first air guide channels are set at both ends of the box along the first horizontal direction. The air inlet end of the first air guide channel is connected to the air outlet end of the fan, and the air outlet end of the first air guide channel is set above the first air distribution component.

[0025] The connecting assembly includes a connector and a support member. The support member is suspended on the housing via the connector and is located at the lower end of the air outlet of the first air guide assembly.

[0026] Several sets of first air-uniforming components are arranged on the carrier and located above the corresponding hot-melt station. Each set of first air-uniforming components includes several air-uniforming elements spaced apart along the first horizontal direction. The air-uniforming elements extend along the second horizontal direction so that a first air-uniforming channel extending along the second horizontal direction is formed between two adjacent air-uniforming elements. The air outlet of the first air guide component is directed toward the first air-uniforming component to supply heated air, which is then delivered to the composite fabric through multiple first air-uniforming channels to perform hot-melt bonding on the composite fabric.

[0027] An adjustment component is provided between two adjacent air distribution components. The adjustment component is configured to adjust the distance between the two adjacent air distribution components in the first horizontal direction, thereby adjusting the ventilation volume of the first air distribution channel.

[0028] Optionally, the adjustment assembly is located above the first air distribution assembly. The adjustment assembly includes a plurality of adjustment rods spaced apart along the second horizontal direction. Each adjustment rod has a plurality of connecting plates and locking members spaced apart along the first horizontal direction. The first end of the connecting plate is fixedly connected to the corresponding air distribution assembly. The second end of the connecting plate is adjustablely mounted on the adjustment rod along the first horizontal direction. The locking member is configured to loosen or fix the second end of the connecting plate relative to the adjustment rod.

[0029] Compared with the prior art, the composite fabric hot-melt equipment proposed in this application has the following advantages:

[0030] 1) The composite fabric to be heat-melted is conveyed horizontally to the heat-melting station by the first conveying mechanism. The heat-melting device performs heat-melting treatment on the composite fabric at the heat-melting station. Finally, the heat-melted composite fabric is conveyed horizontally to the next process by the second conveying mechanism. This provides a horizontal heat-melting method that is more suitable for thin and light composite fabrics. No tensile force is generated on the composite fabric during the heat-melting process, which improves the quality of the heat-melting treatment of the composite fabric.

[0031] 2) By setting the first air guide assembly above the hot melt station and cooperating with the fan and heater, the hot air delivered to the surface of the composite fabric at the hot melt station generates downward pressure on the composite fabric while simultaneously hot-melting the composite fabric horizontally set at the hot melt station. This makes the composite fabric stably adhere to the conveying surface of the first conveyor belt at the hot melt station, thereby improving the stability of the first conveyor belt in conveying the composite fabric.

[0032] 3) By setting an adsorption component below the bearing surface of the composite fabric to be hot-melt laminated on the first conveyor belt, a negative pressure area is formed under the composite fabric through the first conveyor belt, so that the composite fabric can be effectively adsorbed on the first conveyor belt, ensuring the stability during the conveying process.

[0033] 4) By setting an air blowing component below the first conveyor belt and cooperating with a mesh belt structure with ventilation holes, an upward airflow can be formed to actively peel off the hot-melted composite fabric, ensuring that the hot-melted composite fabric on the first conveyor belt accurately reaches the subsequent second conveying mechanism, and the separation effect is good.

[0034] 5) By setting up a cooling component with the exhaust end facing upwards and a second conveyor belt with multiple vent holes evenly distributed, the air above the second conveyor belt flows quickly through the composite fabric, which improves the cooling speed of the composite fabric after hot melting. At the same time, the air flowing through the composite fabric creates a negative pressure area below the composite fabric, which keeps the composite fabric stable on the conveyor belt. Attached Figure Description

[0035] To more clearly illustrate and understand the technical solutions in the embodiments of this application, the accompanying drawings used in the background technology and embodiment descriptions of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this application and these drawings without creative effort.

[0036] Figure 1 This is a three-dimensional structural schematic diagram of the composite fabric hot-melt equipment provided in the embodiments of this application;

[0037] Figure 2 This is a side view of the composite fabric hot-melt equipment provided in the embodiments of this application;

[0038] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the hot-melt device of the composite fabric hot-melt equipment provided in the embodiments of this application;

[0039] Figure 4 This is a three-dimensional structural schematic diagram of the second uniform air assembly of the hot-melt device of the composite fabric hot-melt equipment provided in the embodiments of this application;

[0040] Figure 5 This is a first-view cross-sectional view of the hot-melt device of the composite fabric hot-melt equipment provided in the embodiments of this application;

[0041] Figure 6 This is a cross-sectional view from a second perspective of the hot-melt device of the composite fabric hot-melt equipment provided in the embodiments of this application;

[0042] Figure 7 yes Figure 5 Enlarged view of point A in the middle;

[0043] Figure 8 This is a three-dimensional structural schematic diagram of the adsorption component of the composite fabric hot-melt equipment provided in the embodiments of this application;

[0044] Figure 9 This is a three-dimensional structural schematic diagram of the air blowing component of the composite fabric hot-melt equipment provided in the embodiments of this application;

[0045] Figure 10 This is a three-dimensional structural schematic diagram of the cooling component of the composite fabric hot-melt equipment provided in the embodiments of this application;

[0046] Figure 11 This is a top view of the composite fabric hot-melt equipment provided in the embodiments of this application;

[0047] Figure 12 This is a side view of another embodiment of the composite fabric hot-melt equipment provided in this application. Detailed Implementation

[0048] To facilitate understanding of this application, a more complete description of the application will be provided below with reference to the accompanying drawings. Preferred embodiments of the application are shown in the drawings. However, the application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0049] Please see Figures 1 to 12 As shown in the embodiment of this application, a composite fabric hot-melt device includes a first conveying mechanism 10, a second conveying mechanism 20, and at least one hot-melt device 30, wherein: at least one hot-melt station 40 is provided on the conveying path of the first conveying mechanism 10, and the first conveying mechanism 10 is configured to receive the composite fabric to be hot-melted and to move the received composite fabric along a first horizontal direction ( Figure 1 The composite fabric is conveyed to the hot-melt station 40 in the direction of X; a hot-melt device 30 is provided at each hot-melt station 40, and the hot-melt device 30 is configured to perform hot-melt treatment on the composite fabric at the hot-melt station 40; the second conveying mechanism 20 is connected to the first conveying mechanism 10, and the first conveying mechanism 10 is also configured to convey the hot-melt composite fabric towards the second conveying mechanism 20 along the first horizontal direction, and the second conveying mechanism 20 is configured to receive the hot-melt composite fabric conveyed by the first conveying mechanism 10 and convey the received composite fabric to the next process.

[0050] Specifically, the arrows in the diagram indicate the direction of gas flow inside the chamber.

[0051] Specifically, the composite fabric hot-melt equipment includes a hot-melt device 30.

[0052] In particular, in another embodiment, the composite fabric hot-melt equipment includes a plurality of hot-melt devices 30, which are arranged side by side along a first horizontal direction, thereby improving the hot-melt efficiency and effect.

[0053] The composite fabric to be heat-melted is conveyed horizontally to the heat-melting station 40 by the first conveying mechanism 10. The heat-melting device performs heat-melting treatment on the composite fabric at the heat-melting station 40. Finally, the heat-melted composite fabric is conveyed horizontally to the next process by the second conveying mechanism 20. This provides a horizontal heat-melting method that is more suitable for thin and light composite fabrics. No tensile force is generated on the composite fabric during the heat-melting process, which improves the quality of the heat-melting treatment of the composite fabric.

[0054] In one embodiment, the first conveying mechanism 10 includes a first frame 11, a first conveyor belt 12, and a first drive assembly 13, wherein: a plurality of first ventilation holes are evenly distributed on the first conveyor belt 12; the first frame 11 extends along a first horizontal direction; and the first conveyor belt 12 is rotatably mounted on the first frame 11 and extends along a second horizontal direction. Figure 1 Extending in the Y direction, the first conveyor belt 12 is configured to support the composite fabric, and the first drive assembly 13 is configured to drive the first conveyor belt 12 to rotate, thereby conveying the composite fabric along the first horizontal direction.

[0055] Specifically, the first drive assembly 13 includes a first drive member 130, a first drive roller 131, a first driven roller 132, a tension roller group, and a support roller group, wherein: the first drive roller 131 and the first driven roller 132 are spaced apart along a first horizontal direction and are rotatably mounted on the first frame 11; the first conveyor belt 12 is rotatably fitted onto the first drive roller 131 and the first driven roller 132; and the support roller group is arranged along the first horizontal direction between the first drive roller 131 and the first driven roller 132. In the middle, the support roller group is configured to support the upper belt body of the first conveyor belt 12, and the tension roller group is located below the first drive roller 131. The tension roller group is configured to tension the first conveyor belt 12. The fixed end of the first drive member 130 is mounted on the first frame 11, and the drive end of the first drive member 130 is connected to the first drive roller 131. The first drive member 130 is configured to drive the first drive roller 131 to rotate, and then drive the first conveyor belt 12 to rotate through the cooperation of the first driven roller 132.

[0056] Specifically, the support roller group includes several support rollers 137. The several support rollers 137 are evenly spaced along the first horizontal direction and can be rotatably mounted on the first frame 11. The top surface of the support rollers 137 abuts against the lower surface of the upper belt of the first conveyor belt 12, which improves the smoothness of the first conveyor belt 12 conveying the composite fabric along the first horizontal direction, while avoiding the first conveyor belt 12 from collapsing and deforming downward, thereby ensuring the flatness of the composite fabric on the first conveyor belt 12.

[0057] Specifically, the tensioning roller assembly includes a first tensioning roller 135 and a second tensioning roller 136, wherein: the first tensioning roller 135 and the second tensioning roller 136 are rotatably mounted on the first frame 11 at intervals along the first horizontal direction. The first tensioning roller 135 is located obliquely below the first driving roller 131 near the first driven roller 132, and the second tensioning roller 136 is located obliquely below the first driven roller 132 near the first driving roller 131. Both the first tensioning roller 135 and the second tensioning roller 136 abut against the upper surface of the lower side of the first conveyor belt. The first tensioning roller 135 and the second tensioning roller 136 cooperate to tension the first conveyor belt 12.

[0058] Through the cooperation of the first frame 11, the first conveyor belt 12 and the first drive assembly 13, the composite fabric to be heat-melted is ensured to be sent to the heat-melting station 40 in the horizontal direction and the heat-melted composite fabric is sent out in the horizontal direction, avoiding the stretching of the composite fabric. At the same time, by evenly distributing ventilation holes on the belt, the penetration efficiency of hot air into the composite fabric is improved, thus improving the heat-melting effect.

[0059] In one embodiment, each hot melt device 30 includes a housing 31, a heater 32, a fan 33, and a first air guide assembly 34, wherein: a heating chamber 310 is provided at the top inside the housing 31, the heater 32 is configured to heat the air inside the heating chamber 310 to a preset temperature, the fan 33 is configured to send the heated air to the first air guide assembly 34, the first air guide assembly 34 is disposed inside the housing 31 and above the hot melt station 40, and the first air guide assembly 34 is configured to uniformly guide the heated air to the surface of the composite fabric at the hot melt station 40 to perform hot melt treatment on the composite fabric at the hot melt station 40.

[0060] Specifically, the heater 32 is configured as a natural gas heater 32, providing a highly efficient, energy-saving, and safe heater 32.

[0061] By setting the first air guide assembly 34 above the hot melt station 40 and cooperating with the fan 33 and heater 32, the hot air delivered to the surface of the composite fabric, which is horizontally set at the hot melt station 40, generates downward pressure on the composite fabric, so that the composite fabric is stably attached to the conveying surface of the first conveyor belt 12 at the hot melt station 40, thereby improving the stability of the first conveyor belt 12 in conveying the composite fabric.

[0062] In one embodiment, the hot-melt device 30 further includes an air supply component 35, a circulation chamber 36, and a second air guide component 37, wherein: the fan 33 draws hot air from the heating chamber 310 while creating a negative pressure in the heating chamber 310; the air supply component 35 is disposed above the heating chamber 310 and is configured to supply air to the heating chamber 310; the circulation chamber 36 is disposed between the upper and lower belts of the first conveyor belt 12 extending along a second horizontal direction and is configured to receive hot air flowing through the first conveyor belt 12 and the composite fabric; the second air guide component 37 is disposed on the side extending along a first horizontal direction inside the housing 31 and is configured to transport part of the gas in the circulation chamber 36 to the heating chamber 310 through the negative pressure in the heating chamber 310.

[0063] Specifically, the air supply assembly 35 includes an air supply channel 350 and a first regulating valve 351. One end of the air supply channel 350 is connected to the heating chamber 310. A first through hole is provided on the housing 31. The air supply channel 350 is connected to the first through hole to connect the outside of the housing 31 and the heating chamber 310. The first regulating valve 351 is located at the first through hole and is configured to regulate the air intake of the air supply channel 350 to ensure the air pressure balance in the heating chamber 310.

[0064] Specifically, the second air guide assembly 37 includes two sets of air outlet assemblies, which are arranged on both sides of the housing 31 extending along the first horizontal direction. Each set of air outlet assemblies includes a first filter 370 and a second air guide channel 371. The first filter 370 is arranged at the rear of the second air guide channel 371. The air inlet of the second air guide channel 371 is connected to the circulation chamber 36, and the air outlet of the second air guide channel 371 is connected to the heating chamber 310, so as to cooperate with the heating chamber 310 to form a hot air circulation and improve the heat utilization efficiency.

[0065] Specifically, the housing 31 is provided with a second through hole 311, and the second air guide assembly 37 also includes a second regulating valve 372. The air outlet of the second air guide channel 371 is also connected to the second through hole 311. The second regulating valve 372 is located near the second through hole 311 to regulate the gas discharged from the housing 31 in the second air guide channel 371, so as to flexibly adjust the humidity balance inside the housing 31 according to the actual situation in conjunction with the air supply assembly 35.

[0066] Specifically, a number of filter components 360 are arranged side by side at the top of the circulation chamber 36 along the second horizontal direction. Each filter component 360 includes a fourth air distribution plate and a second filter screen. The fourth air distribution plate extends along the first horizontal direction, and the second filter screen is laid on the fourth air distribution plate along the second horizontal direction. The cooperation of the fourth air distribution plate and the second filter screen can perform preliminary filtration of the hot air passing through the first conveyor belt 12 and the composite cloth, while making the hot air enter the circulation chamber 36 evenly.

[0067] With the cooperation of the circulation chamber 36 and the second air guide assembly 37, some of the hot air that has passed through the composite cloth and the first conveyor belt 12 is filtered and then returned to the heating chamber 310, thus realizing the recycling of heat and saving energy.

[0068] In one embodiment, the first conveying mechanism 10 further includes an adsorption component, which is disposed on the first frame 11 at the fabric inlet end of the first conveying mechanism 10 and located between one side belt above and one side belt below the first conveying mesh belt 12. The adsorption end of the adsorption component faces upward and extends along a second horizontal direction. The adsorption component is configured to draw air above the conveying surface of the first conveying mesh belt 12 through a first vent hole to form a negative pressure that adsorbs the composite fabric to be heat-melted onto the conveying surface of the first conveying mesh belt 12.

[0069] Specifically, the adsorption assembly includes an exhaust duct 14 and two sets of first exhaust fans (not shown in the figure). The two sets of first exhaust fans are respectively arranged at intervals on both sides of the first frame 11 along the second horizontal direction. The exhaust end of the exhaust duct 14 is arranged facing upward. The first exhaust fans are connected to the exhaust duct 14. The first exhaust fans are configured to draw air from the exhaust duct 14 and then draw air above the conveying surface of the first conveyor belt 12 through the exhaust end of the exhaust duct 14.

[0070] Specifically, the exhaust duct 14 includes a first main air duct 141, a first side air duct 142, and a second side air duct 143, wherein:

[0071] The first main air duct 141 extends along the second horizontal direction. The first side air duct 142 is located on the first side of the first main air duct 141 extending along the first horizontal direction. The second side air duct 143 is located on the second side of the first main air duct 141 extending along the first horizontal direction. The first side air duct 142 and the second side air duct 143 are each provided with a plurality of first ventilation holes 1410 on the side of the first main air duct 141 to connect the first main air duct 141 with the first side air duct 142 and the second side air duct 143. The plurality of first ventilation holes are spaced apart along the second horizontal direction.

[0072] Several upward-facing second ventilation holes 1420 are provided on the top surfaces of the first side air duct 142 and the second side air duct 143, and the several second ventilation holes 1420 are spaced apart along the second horizontal direction.

[0073] A ventilation cavity 144 is vertically arranged between the exhaust duct 140 and the upper side belt of the first conveyor belt 12. A second ventilation hole 1420 connects the ventilation cavity 144 with the first side air duct 142 and the second side air duct 143. A first air distribution plate 145 is provided on the top of the ventilation cavity 144. The first air distribution plate 145 extends along the second horizontal direction. A plurality of first air distribution holes are evenly distributed on the first air distribution plate 145 so that uniform air passing through the conveying surface of the first conveyor belt 12 can enter the ventilation cavity 144 through the first air distribution holes.

[0074] By setting an adsorption component below the bearing surface of the composite fabric to be hot-melt bonded on the first conveyor belt 12, a negative pressure area is formed under the composite fabric through the first conveyor belt 12, so that the composite fabric can be effectively adsorbed on the first conveyor belt 12, ensuring the stability during the conveying process.

[0075] In one embodiment, the first conveying mechanism 10 further includes an air blowing assembly, which is disposed on the first frame 11 at the fabric outlet end of the first conveying mechanism 10 and located between one side belt above and one side belt below the first conveying mesh belt 12. The air blowing end of the air blowing assembly faces upward and extends along a second horizontal direction. The air blowing assembly is configured to blow air toward the conveying surface of the conveying mesh belt through a first vent hole to blow the hot-melted composite fabric away from the conveying surface of the conveying mesh belt.

[0076] Specifically, the air blowing assembly includes an air blowing duct 15 and two sets of air blowing components (not shown in the figure). The two sets of air blowing components are respectively arranged at intervals on both sides of the first frame 11 along the second horizontal direction. The air blowing end of the air blowing duct 15 faces upward, and the air blowing components are connected to the air blowing duct 15. The air blowing components are configured to blow air into the air blowing duct 15 to form an upward airflow below the belt body on the conveyor belt.

[0077] Specifically, the blowing duct 15 includes a second main air duct 150 and two side air ducts 151, wherein: the second main air duct 150 opens upward and extends along the second horizontal direction, and the two side air ducts 151 are respectively attached to both sides of the second main air duct 150 extending along the second horizontal direction. On the side of the side air duct 151 near the second main air duct 150, a number of third ventilation holes (not shown in the figure) are provided at intervals along the second horizontal direction. The second main air duct 150 is connected to the side air duct 151 through the third ventilation holes. The top surface of the side air duct 151 is provided with a number of fourth ventilation holes 1510 at intervals along the second horizontal direction. The air in the side air duct 151 is blown upward through the fourth ventilation holes 1510 to the area below the conveying surface of the first conveyor belt 12.

[0078] Specifically, a second air distribution plate 152 is installed at the opening of the second main air duct 150. The second air distribution plate 152 extends along the second horizontal direction and has multiple second air distribution holes evenly distributed on it.

[0079] By setting an air blowing component below the first conveyor belt 12 and cooperating with a mesh belt structure with ventilation holes, an upward airflow can be formed to actively peel off the hot-melted composite fabric, ensuring that the hot-melted composite fabric on the first conveyor belt 12 accurately reaches the subsequent second conveyor mechanism 20, resulting in a good separation effect.

[0080] In one embodiment, the second conveying mechanism 20 includes a second frame 21, a second conveying mesh belt 22, and a second drive assembly 23, wherein: the second conveying mesh belt 22 is evenly distributed with a plurality of second ventilation holes; the second frame 21 is arranged parallel to the first frame 11 along the first horizontal direction and close to the fabric outlet end of the first conveying mechanism 10; the second conveying mesh belt 22 is rotatably mounted on the second frame 21; the second conveying mesh belt 22 is configured to receive the hot-melted composite fabric delivered by the first conveying mechanism 10; and the second drive assembly 23 is configured to drive the second conveying mesh belt 22 to rotate, thereby conveying the composite fabric along the first horizontal direction.

[0081] Specifically, the second drive assembly 23 includes a second drive member 230, a second drive roller 231, a second driven roller 232, a third tension roller 233, and a fourth tension roller 234. The second drive roller 231 and the second driven roller 232 are spaced apart along the first horizontal direction and are rotatably mounted on the second frame 21. The second conveyor belt 22 is rotatably mounted on the second drive roller 231 and the second driven roller 232. The fixed end of the second drive member 230 is mounted on the second frame 21, and the drive end of the second drive member 230 is connected to the second drive roller 231. The second drive member 230 is configured to drive the second drive roller 231 to rotate, and then drive the second conveyor belt 22 to rotate through the cooperation of the second driven roller 232.

[0082] The third tension roller 233 and the fourth tension roller 234 are rotatably mounted on the second frame 21 at intervals along the first horizontal direction. The third tension roller 233 is located obliquely below the second driven roller 231 near the second driven roller 232, and the fourth tension roller 234 is located obliquely below the second driven roller 232 near the second driven roller 231. Both the third tension roller 233 and the fourth tension roller 234 abut against the upper surface of the lower side of the second conveyor belt. The third tension roller 233 and the fourth tension roller 234 cooperate to tension the second conveyor belt 22.

[0083] The cooperation of the second frame 21, the second conveyor belt 22, and the second drive assembly 23 facilitates the horizontal reception of the hot-melted composite fabric sent out by the first conveyor mechanism 10, thus preventing the hot-melted composite fabric from being pulled and damaged during further processing.

[0084] In one embodiment, the second conveying mechanism 20 further includes a cooling component, which is disposed on the second frame 21 and located between the upper and lower belts of the second conveyor belt 22. The air extraction end of the cooling component is arranged upward, and the cooling component is configured to draw air above the hot-melted composite fabric on the conveyor belt through the air extraction end, so that the air above the conveyor belt flows quickly through the composite fabric, thereby cooling and solidifying the hot-melted composite fabric.

[0085] Specifically, the cooling assembly includes a cooling duct 24 and two sets of second exhaust fans (not shown in the figure). The two sets of second exhaust fans are respectively arranged on both sides of the second frame 21 along the second horizontal direction. The cooling duct 24 extends along the second horizontal direction and the exhaust end of the cooling duct 24 faces upward. The second exhaust fans are connected to the cooling duct 24 and are configured to draw air from the cooling duct 24, and then draw air above the hot-melted composite fabric through the exhaust end of the cooling duct 24.

[0086] Specifically, the exhaust end of the cooling air duct 24 is provided with several third air distribution plates 243, which extend along the second horizontal direction, and multiple third air distribution holes are evenly distributed on the third air distribution plates 243.

[0087] Specifically, the cooling air duct 24 includes a third main air duct 240, a third side air duct 241, and a fourth side air duct 242, wherein: the third main air duct 240 extends along a second horizontal direction, the third side air duct 241 is located on the first side of the third main air duct 240 extending along the second horizontal direction, and the fourth side air duct 242 is located on the second side of the third main air duct 240 extending along the second horizontal direction. The third main air duct 240 is connected to the third side air duct 241 and the fourth side air duct 242 along the first horizontal direction.

[0088] By combining a cooling component with its exhaust end facing upwards and a second conveyor belt 22 with multiple vent holes, air above the second conveyor belt 22 flows rapidly through the composite fabric, increasing the cooling speed of the composite fabric after hot melting. At the same time, the air flowing through the composite fabric creates a negative pressure area below the composite fabric, keeping the composite fabric stable on the conveyor belt.

[0089] In one embodiment, the first air guiding assembly 34 includes a connecting assembly 340, several sets of first air equalization assemblies 341, and two first air guiding channels 343, wherein: the two first air guiding channels 343 are disposed at both ends of the housing 31 along a first horizontal direction, the air inlet end of the first air guiding channel 343 is connected to the air outlet end of the fan 33, and the air outlet end of the first air guiding channel 343 is disposed above the first air equalization assembly 341; the connecting assembly 340 includes a connector 3401 and a support member 3402, the support member 3402 is suspended on the housing 31 through the connector 3401, and the support member 3402 is located at the lower end of the air outlet end of the first air guiding assembly 34; several sets of first air equalization assemblies 341 are disposed on the support member 3402 and located at the corresponding hot melt Above the workstation 40, each group of first air distribution components 341 includes several air distribution elements 3410 spaced apart along a first horizontal direction. The air distribution elements 3410 extend along a second horizontal direction, so that a first air distribution channel 3411 extending along the second horizontal direction is formed between two adjacent air distribution elements 3410. The air outlet of the first air guide component 34 supplies heated air to the first air distribution component 341, which is then delivered to the composite fabric through multiple first air distribution channels 3411 to perform thermal melting composite on the composite fabric. An adjustment component 342 is provided between two adjacent air distribution elements 3410. The adjustment component 342 is configured to adjust the spacing between two adjacent air distribution elements 3410 in the first horizontal direction, thereby adjusting the ventilation volume of the first air distribution channel 3411.

[0090] Specifically, the connector 3401 is configured as a hanger rod, the bearing 3402 is configured as a rectangular frame, the bottom of the rectangular frame has a boss extending inward along the horizontal direction, and the two ends of the air distribution component 3410 along the second horizontal direction are set on the boss.

[0091] Specifically, the air distribution component 3410 is designed as a rectangular tube, providing a simple and stable air distribution component 3410.

[0092] Specifically, a guide plate 3412 is vertically arranged below some of the air distribution components 3410. The guide plate 3412 extends along the second horizontal direction to form multiple second air distribution channels 3413 in the first horizontal direction. The width of the second air distribution channel 3413 in the first horizontal direction is greater than the width of the first air distribution channel 3411 in the first horizontal direction. This facilitates further orientation and rectification of the hot air blown out by the first air distribution channel 3411, reduces the formation of turbulence and flow, improves the stability of air distribution, and prevents uncontrolled hot air diffusion.

[0093] Specifically, a fixing rod 3414 is fixedly connected to the bottom of the air guide plate 3412. The fixing rod 3414 extends along the first horizontal direction to enhance the stability of the air guide plate 3412 installation.

[0094] Specifically, the width of the multiple second uniform air channels 3413 in the first horizontal direction decreases sequentially from both ends to the middle in the first horizontal direction, so as to ensure that the hot air blown from the air outlet of the first air guide assembly 34 to the first uniform air assembly 3410 has a balanced flow rate in the multiple second uniform air channels 3413 after passing through the first uniform air channel 3411, thereby ensuring the uniformity of heat melting of the composite fabric.

[0095] Specifically, the first air guiding assembly 34 also includes a second air equalization assembly 344. Each set of second air equalization assemblies 344 is disposed in front of the corresponding first air equalization channel 3411. Each set of second air equalization assemblies 344 includes a first air equalization plate 3440, a second air equalization plate 3441, and four sets of limiting assemblies 3442. The first air equalization plate 3440 extends along a second horizontal direction, and first baffles are provided at both ends of the first air equalization plate 3440 extending inward along the second horizontal direction. The second air equalization plate 3441 is slidably attached to the first air equalization plate 3440 along the second horizontal direction, and second baffles are provided at both ends of the second air equalization plate 3441 extending inward along the second horizontal direction. The limiting assemblies 3442 connect the first air equalization plate 3440 and the second air equalization plate 3440. The air distribution plate 3441 and the limiting component 3442 are configured to limit the movement of the second air distribution plate 3441 along the second horizontal direction. The first air distribution plate 3440 is provided with a plurality of first air distribution holes 3443, and the second air distribution plate 3441 is provided with a plurality of second air distribution holes 3444. The first air distribution holes 3443 and the second air distribution holes 3444 have the same specifications. The first air distribution holes 3443 and the second air distribution holes 3444 are correspondingly arranged, and when the first baffle at one end of the first air distribution plate 3440 abuts against the second baffle at one end of the second air distribution plate 3441, the first air distribution holes 3443 and the second air distribution holes 3444 do not interfere with each other. This provides an air distribution structure that can balance the distribution of hot air while also adjusting the air volume.

[0096] Specifically, each set of limiting components 3442 includes a positioning rod, a positioning hole, and a waist-shaped hole. The waist-shaped hole is set on the plate surface of the second air distribution plate 3441 and extends along the second horizontal direction. The positioning hole is set on the plate surface of the first air distribution plate 3440. The positioning rod passes through the waist-shaped hole and the positioning hole. The structure is simple and provides stable limiting for the second air distribution plate 3441.

[0097] By setting up several air distribution components 3410 and adjusting their spacing individually through the adjustment component 342, the size of the first air distribution channel 3411 can be changed, thereby achieving flexible adjustment of the hot air flow direction and air volume distribution to meet the hot melting requirements of composite fabrics of different specifications and improving the applicability of the equipment.

[0098] In one embodiment, the adjusting component 342 is disposed above the first air distribution component 341. The adjusting component 342 includes a plurality of adjusting rods 3420 spaced apart along a second horizontal direction. Each adjusting rod 3420 is provided with a plurality of connecting plates 3421 and locking members 3422 spaced apart along a first horizontal direction. The first end of the connecting plate 3421 is fixedly connected to the corresponding air distribution component 3410. The second end of the connecting plate 3421 is adjustablely mounted on the adjusting rod 3420 along the first horizontal direction. The locking member 3422 is configured to loosen or fix the second end of the connecting plate 3421 relative to the adjusting rod 3420.

[0099] Specifically, the top of the connecting plate 3421 has a through hole, and the adjusting rod 3420 passes through the through hole;

[0100] The adjusting rod 3420 is a threaded rod, and the locking member 3422 includes a first nut and a second nut. The first nut and the second nut are threadedly fitted onto the adjusting rod 3420 and located on both sides of the connecting plate 3421 in the first horizontal direction. The second end of the connecting plate 3421 is tightly fixed to the adjusting rod 3420 by the cooperation of the first nut and the second nut.

[0101] By combining the adjusting rod 3420, the connecting plate 3421, and the locking member 3422, an adjusting assembly 342 with a simple structure, stable adjustment, and precise adjustment direction is provided.

[0102] The working principle of the above-mentioned composite fabric hot melt equipment is as follows:

[0103] S1, the infeed end of the first conveying mechanism 10 receives the composite fabric to be heat-melted, and the adsorption component adsorbs the composite fabric to be heat-melted onto the first conveying mesh belt 12 at the infeed end, so that the first conveying mechanism 10 can simultaneously and smoothly send the composite fabric to be heat-melted to the heat-melting station 40 along the first horizontal direction.

[0104] S2, heater 32 heats the air in heating chamber 310, fan 33 draws the heated air in heating chamber 310 and sends it to first air distribution component 341 through first air guide channel 343, heated air is sent to composite fabric through multiple first air distribution channels 3411 and second air distribution channels 3413 to perform hot melt composite on composite fabric.

[0105] S3, the hot air passing through the composite cloth and the first conveyor belt 12 is initially filtered by the filter assembly 360 and then enters the circulation chamber 36. After entering the second air guide channel 371 and being filtered a second time by the first filter screen 370, part of it re-enters the heating chamber 11, and the other part is discharged from the box 10 through the second through hole 311.

[0106] S4, the first conveying mechanism 10 sends the hot-melted composite fabric out of the hot-melting station 40 to the fabric outlet end of the first conveying mechanism 10 along the first horizontal direction, and the air blowing component blows air upward toward the conveying surface of the first conveying mesh belt 12 to blow the hot-melted composite fabric away from the conveying surface of the first conveying mesh belt 12.

[0107] S5, the second conveying mechanism 20 receives the hot-melted composite fabric conveyed by the first conveying mechanism 10. The cooling component draws air from the top of the hot-melted composite fabric on the second conveying mesh belt 22 through the air extraction end, so that the air above the second conveying mesh belt 22 flows quickly through the composite fabric, thereby cooling and solidifying the hot-melted composite fabric.

[0108] S6, the second conveying mechanism 20 conveys the cooled and cured composite fabric to the next process along the first horizontal direction.

[0109] The above embodiments merely illustrate the basic principles and characteristics of this application. This application is not limited to the above examples. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A composite fabric hot-melt device, characterized in that, The composite fabric hot-melt equipment includes a first conveying mechanism, a second conveying mechanism, and at least one hot-melt device, wherein: At least one hot-melt station is provided on the conveying path of the first conveying mechanism. The first conveying mechanism is configured to receive the composite fabric to be hot-melted and convey the received composite fabric to the hot-melt station along the first horizontal direction. Each of the hot-melting stations is provided with a hot-melting device, which is configured to perform hot-melting treatment on the composite fabric at the hot-melting station. The second conveying mechanism is connected to the first conveying mechanism, and the first conveying mechanism is further configured to convey the hot-melted composite fabric toward the second conveying mechanism along the first horizontal direction. The second conveying mechanism is configured to receive the hot-melted composite fabric conveyed by the first conveying mechanism and convey the received composite fabric to the next process.

2. The composite fabric hot-melt equipment according to claim 1, characterized in that, The first conveying mechanism includes a first frame, a first conveyor belt, and a first drive assembly, wherein: The first conveyor belt has a plurality of first ventilation holes evenly distributed on it. The first frame extends along the first horizontal direction. The first conveyor belt is rotatably mounted on the first frame and extends along the second horizontal direction. The first conveyor belt is configured to support the composite fabric. The first drive assembly is configured to drive the first conveyor belt to rotate, thereby conveying the composite fabric along the first horizontal direction.

3. The composite fabric hot-melt equipment according to claim 2, characterized in that, Each of the aforementioned hot-melt devices includes a housing, a heater, a fan, and a first air guide assembly, wherein: A heating chamber is provided at the top of the housing. The heater is configured to heat the air in the heating chamber to a preset temperature. The fan is configured to send the heated air to the first air guide assembly. The first air guide assembly is located in the housing and above the hot-melt station. The first air guide assembly is configured to uniformly guide the heated air to the surface of the composite fabric at the hot-melt station to perform hot-melt treatment on the composite fabric at the hot-melt station.

4. The composite fabric hot-melt equipment according to claim 3, characterized in that, The hot-melting device further includes an air supply assembly, a circulation chamber, and a second air guide assembly, wherein: The fan draws hot air from the heating chamber and simultaneously creates negative pressure within the heating chamber. The air supply component is disposed above the heating chamber and is configured to supply air to the heating chamber. The circulation chamber is disposed between the upper and lower belts of the first conveyor belt, extending along the second horizontal direction. The circulation chamber is configured to receive hot air flowing through the first conveyor belt and the composite fabric. The second air guide assembly is disposed on the side of the housing, extending along the first horizontal direction. The second air guide assembly is configured to transport part of the gas in the circulation chamber to the heating chamber through the negative pressure in the heating chamber.

5. The composite fabric hot-melt equipment according to claim 2, characterized in that, The first conveying mechanism further includes an adsorption component, which is disposed on the first frame at the fabric inlet end of the first conveying mechanism and located between one side of the belt above and one side of the belt below the first conveying mesh belt. The adsorption end of the adsorption component faces upward and extends along the second horizontal direction. The adsorption component is configured to draw air above the conveying surface of the first conveying mesh belt through the first vent hole to form a negative pressure that adsorbs the composite fabric to be heat-melted onto the conveying surface of the first conveying mesh belt.

6. The composite fabric hot-melt equipment according to claim 2, characterized in that, The first conveying mechanism further includes an air blowing assembly, which is disposed on the first frame at the fabric outlet end of the first conveying mechanism and located between one side belt above and one side belt below the first conveying mesh belt. The air blowing end of the air blowing assembly faces upward and extends along a second horizontal direction. The air blowing assembly is configured to blow air towards the conveying surface of the conveying mesh belt through the first vent hole to blow the hot-melted composite fabric away from the conveying surface of the conveying mesh belt.

7. The composite fabric hot-melt equipment according to claim 2, characterized in that, The second conveying mechanism includes a second frame, a second conveyor belt, and a second drive assembly, wherein: The second conveyor belt has a plurality of second ventilation holes evenly distributed on it. The second frame is arranged parallel to the first frame along the first horizontal direction and close to the fabric outlet end of the first conveying mechanism. The second conveyor belt is rotatably mounted on the second frame. The second conveyor belt is configured to receive the hot-melted composite fabric delivered by the first conveying mechanism. The second drive assembly is configured to drive the second conveyor belt to rotate, thereby conveying the composite fabric along the first horizontal direction.

8. The composite fabric hot-melt equipment according to claim 7, characterized in that, The second conveying mechanism further includes a cooling component, which is disposed on the second frame and located between the upper and lower belts of the second conveyor belt. The air extraction end of the cooling component is arranged upward, and the cooling component is configured to draw air above the hot-melted composite fabric on the conveyor belt through the air extraction end, so that the air above the conveyor belt flows quickly through the composite fabric, thereby cooling and curing the hot-melted composite fabric.

9. The composite fabric hot-melt equipment according to claim 3, characterized in that, The first air guiding assembly includes a connecting assembly, several sets of first air distribution assemblies, and two first air guiding channels, wherein: Two first air guide channels are disposed at both ends of the housing along the first horizontal direction. The air inlet end of the first air guide channel is connected to the air outlet end of the fan. The air outlet end of the first air guide channel is disposed above the first air distribution component. The connecting assembly includes a connector and a support member. The support member is suspended on the housing via the connector and is located at the lower end of the air outlet of the first air guide assembly. Several sets of first air-uniforming components are disposed on the carrier and located above the corresponding hot-melt station. Each set of first air-uniforming components includes several air-uniforming elements spaced apart along a first horizontal direction. The air-uniforming elements extend along a second horizontal direction, so that a first air-uniforming channel extending along the second horizontal direction is formed between two adjacent air-uniforming elements. The air outlet of the first air guide component is directed toward the first air-uniforming component to supply heated air, which is then delivered to the composite fabric through multiple first air-uniforming channels to perform hot-melt bonding on the composite fabric. An adjustment component is provided between two adjacent air-uniforming components. The adjustment component is configured to adjust the distance between the two adjacent air-uniforming components in the first horizontal direction, thereby adjusting the ventilation volume of the first air-uniforming channel.

10. The composite fabric hot-melt equipment according to claim 9, characterized in that, The adjustment assembly is disposed above the first air distribution assembly. The adjustment assembly includes a plurality of adjustment rods spaced apart along the second horizontal direction. Each adjustment rod has a plurality of connecting plates and locking members spaced apart along the first horizontal direction. The first end of the connecting plate is fixedly connected to the corresponding air distribution assembly. The second end of the connecting plate is adjustablely mounted on the adjustment rod along the first horizontal direction. The locking member is configured to loosen or fix the second end of the connecting plate relative to the adjustment rod.

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