Nonwoven fabric rotary screen hot air dryer

Abstract

The utility model relates to non - woven fabric processing technical field, concretely is a kind of non - woven fabric round net hot -blast drying machine, including hot drying mechanism, heating assembly being installed on hot drying mechanism and thermoplastic anti -sticking mechanism being installed in hot drying mechanism;The hot drying mechanism includes drying cover, and two rectangular wire bays are fixedly installed on the both sides of drying cover. By setting heating assembly on the top of drying cover, and inserting built-in shield in the inside of drying cover, when heating assembly releases heat and continues to blow down, the instant that silk thread stretched along two rectangular wire bays is blown by hot air current is printed on the upper surface of round net, silk thread under the action of hot air current can be quickly thermoplastic, and after passing through round net, hot air current enters the inner cavity of base from gas collecting pipe, and the circular airflow formed after input exhaust hole from flow guide hole can cooperate with vibrating round net to loosen longitudinal thermoplastic fiber, to avoid that thermoplastic fiber is broken due to transverse pulling.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabric processing technology, specifically a nonwoven fabric rotary hot air dryer. Background Technology

[0002] Hot air dryers are essential equipment in the production of nonwoven fabrics. When the raw material for nonwoven fabric preparation is COPET / PET, hot air can accelerate the thermoplastic efficiency of the stretched COPET / PET yarns, thereby improving the smoothness, gloss and comfort of the product.

[0003] However, fibers extruded from COPET / PET raw materials need to be solidified by airflow. When the fibers enter the hot air dryer, they will be thermoplasticized and stick to the round mesh under the action of hot airflow. Pulling along the loose direction of the fibers will cause the fibers to break after thermoplasticization.

[0004] In view of this, a non-woven circular mesh hot air dryer was designed to solve the above problems. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows: A nonwoven fabric rotary hot air dryer includes a drying mechanism, a heating component mounted on the drying mechanism, and a thermoplastic anti-sticking mechanism installed inside the drying mechanism. The drying mechanism includes a drying hood, with two rectangular wire feeding covers fixedly installed on both sides of the drying hood. The heating component includes a machine cover fixedly installed at the top of the drying hood, with a heating tube installed inside the machine cover. The thermoplastic anti-sticking mechanism includes a rotary mesh and an inner protective cover, with an exhaust hole inside the inner protective cover. Four vertical rods are fixedly installed on the top of the inner protective cover, and springs are provided on the outside of the vertical rods. The rotary mesh is movably installed outside the four vertical rods, and the upper surface of the rotary mesh is aligned with the bottom surface of the inner cavity of the two rectangular wire feeding covers.

[0007] In a preferred embodiment, the present invention can be further configured such that: the hot drying mechanism further includes a base fixedly installed at the bottom of the drying hood, an air-gathering pipe is fixedly installed inside the base, a plurality of evenly distributed guide holes are opened at the top of the base, and an air-gathering pipe is fixedly installed in the middle of the base.

[0008] In a preferred embodiment, the present invention can be further configured as follows: the thermoplastic anti-stick mechanism further includes two arc-shaped pads fixedly installed on the inner wall of the drying hood, an internal protective cover is installed inside the drying hood, a vertical groove is opened on the outer wall of the internal protective cover, and a control unit is installed in the vertical groove. An electromagnet and an armature are installed in the control unit, a coil is wound around the outside of the electromagnet, a leaf spring is fixedly installed on the armature, and the other end of the leaf spring is fixedly installed on the inner wall of the control unit.

[0009] In a preferred embodiment, the present invention can be further configured such that: a plug is movably installed in the slot at the top of the built-in protective cover, a tension spring is fixedly installed at the bottom of the plug, and the bottom end of the tension spring is fixedly installed on the wall of the vent hole.

[0010] In a preferred embodiment, the present invention can be further configured such that the top end of the armature is fixedly mounted on the circular mesh.

[0011] In a preferred embodiment, the present invention can be further configured such that a blower is fixedly installed on the top of the shroud, and the blower is connected to the inner cavity of the shroud.

[0012] In a preferred embodiment, the present invention can be further configured such that a return hood is fixedly installed at the top of the built-in protective cover, and the diameter of the bottom end of the return hood is the same as the diameter of the circular mesh.

[0013] In a preferred embodiment, the present invention can be further configured such that the port at the top of the gas-gathering pipe is located directly below the return shroud, and the outer wall of the top of the gas-gathering pipe is adapted to fit against the inner wall of the built-in protective cover.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: 1. This utility model provides a heating component at the top of the drying hood and inserts an internal protective cover inside the drying hood. When the heating component releases heat and continuously blows downwards, the filaments stretched laterally along the two rectangular feeding covers are instantly imprinted on the upper surface of the circular mesh by the hot airflow. Under the action of the hot airflow, the filaments are rapidly thermoformed. After passing through the circular mesh, the hot airflow enters the inner cavity of the base through the air collection pipe and enters the exhaust hole through the guide hole. The resulting circular airflow can work with the vibrating circular mesh to longitudinally loosen the thermoformed fibers, thereby preventing the thermoformed fibers from breaking due to lateral pulling. Attached Figure Description

[0015] Figure 1 This is a schematic diagram illustrating the use of this utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram of the hot drying mechanism of this utility model; Figure 4This is an exploded view of the thermoplastic anti-stick mechanism of this utility model; Figure 5 This utility model Figure 4 Enlarged view of point A.

[0016] Figure label: 100. Heating mechanism; 110. Base; 1101. Guide hole; 120. Drying hood; 130. Air gathering pipe; 140. Rectangular wire feeding cover; 200. Heating assembly; 210. Machine cover; 220. Heating element; 230. Blower; 300. Thermoplastic anti-stick mechanism; 310. Built-in protective cover; 3101. Vent hole; 3102. Tension spring; 3103. Plug; 320. Vertical rod; 330. Spring; 340. Circular mesh; 350. Arc-shaped pad; 360. Return shroud; 370. Control unit; 3701. Electromagnet; 3702. Coil; 3703. Armature; 3704. Leaf spring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0018] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0019] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a nonwoven fabric rotary mesh hot air dryer.

[0020] Example 1: Combination Figures 1 to 5 As shown, the present invention provides a nonwoven circular mesh hot air dryer, including a hot drying mechanism 100, a heating component 200 installed on the hot drying mechanism 100, and a thermoplastic anti-sticking mechanism 300 installed inside the hot drying mechanism 100. The hot drying mechanism 100 is used to cooperate with the heating component 200 to perform thermoplastic treatment on the transversely stretched yarn. The thermoplastic anti-sticking mechanism 300 is used to provide a thermoplastic carrier for the yarn under the blowing of hot air and to improve the non-destructive peeling of fibers after thermoplastic treatment.

[0021] The hot drying mechanism 100 includes a drying hood 120, two rectangular wire feeding covers 140 are fixedly installed on both sides of the drying hood 120, an air gathering pipe 130 is fixedly installed inside the base 110, the base 110 is fixedly installed at the bottom of the drying hood 120, the top of the base 110 has a plurality of evenly distributed guide holes 1101, and the air gathering pipe 130 is fixedly installed in the middle of the base 110. The heating assembly 200 includes a cover 210 fixedly installed at the top of the drying hood 120, and a heating tube 220 is installed inside the cover 210; The thermoplastic anti-stick mechanism 300 includes a circular mesh 340 and an inner protective cover 310. The inner protective cover 310 has an exhaust port 3101 inside. Four vertical rods 320 are fixedly installed on the top of the inner protective cover 310. Springs 330 are installed on the outside of the vertical rods 320. The circular mesh 340 is movably installed outside the four vertical rods 320, and its upper surface is aligned with the bottom surface of the inner cavity of the two rectangular wire feeding covers 140. It is fixedly installed on the inner wall of the drying cover 120. Two arc-shaped pads 350, and an internal protective cover 310 is installed inside the drying hood 120. The outer wall of the internal protective cover 310 has a vertical groove, and a control unit 370 is installed in the vertical groove. An electromagnet 3701 and an armature 3703 are installed inside the control unit 370. A coil 3702 is wound around the outside of the electromagnet 3701. A leaf spring 3704 is fixedly installed on the armature 3703, and the other end of the leaf spring 3704 is fixedly installed on the inner wall of the control unit 370. A plug 3103 is movably installed in the slot at the top of the built-in protective cover 310. A tension spring 3102 is fixedly installed at the bottom of the plug 3103, and the bottom end of the tension spring 3102 is fixedly installed on the wall of the vent 3101. The top of armature 3703 is fixedly mounted on the round mesh 340.

[0022] Preferably, the gas-gathering tube 130 has a funnel-shaped structure, and the bottom section of the gas-gathering tube 130 is located in the middle of the inner cavity of the base 110. A narrow gap is reserved between the bottom of the inner cavity of the base 110 and the bottom end of the gas-gathering tube 130. The bottom of the inner cavity of the two rectangular wire feeding covers 140 is adapted to be flush with the upper surface of the circular mesh 340. In addition, the two slots formed by the two arc-shaped pads 350 are aligned with the ports of the inner ends of the two rectangular wire feeding covers 140, and a certain gap is reserved between the bottom surface of the round mesh 340 and the top of the return cover 360. As the magnetic field at the top of the electromagnet 3701 changes regularly, the armature 3703 will drive the round mesh 340 to vibrate at high frequency. With the help of the airflow rising from the side mesh holes of the round mesh 340, the thermoplastic fibers can be peeled off without damage.

[0023] Example 2: Combination Figure 2 and Figure 4 As shown, based on Embodiment 1, a blower 230 is fixedly installed on the top of the cover 210, and the blower 230 is connected to the inner cavity of the cover 210.

[0024] Preferably, after the blower 230 is powered on, outside air will enter its inner cavity through the filter screen at the top of the blower 230. The filtered air forms a constant pressure airflow that passes through the inner cavity of the cover 210. The heating tube 220, after being powered on, will continuously and stably output heat energy released by the heating resistance wire inside under the blowing airflow. At this time, the wire stretched horizontally along the inner cavity of the two rectangular wire feeding covers 140 will be evenly spread on the upper surface of the round mesh 340 under the vertical blowing of the hot airflow, and then the spread wire can be thermoplasticized.

[0025] Example 3: Combination Figure 4 As shown, in the above embodiment, a return shroud 360 is fixedly installed on the top of the built-in protective cover 310, and the diameter of the bottom end of the return shroud 360 is the same as the diameter of the circular mesh 340. The port at the top of the gas gathering pipe 130 is located directly below the return shroud 360, and the outer wall of the top end of the gas gathering pipe 130 is adapted to fit against the inner wall of the built-in protective cover 310.

[0026] Preferably, the cross-section of the return hood 360 is S-shaped. As the air-gathering pipe 130 gathers the hot airflow after passing through the mesh of the circular mesh 340 and transfers it to the inner cavity of the base 110, the hot airflow transferred to the inner cavity of the base 110 will flow back towards the inner side of the inner protective cover 310 along multiple guide holes 1101, and finally be squeezed upward from the exhaust hole 3101. The airflow released from the top of the inner protective cover 310 will be discharged upward from the mesh on the side of the circular mesh 340 under the guidance of the return hood 360. This process can improve the speed of fiber peeling after thermoplasticization.

[0027] The working principle and usage process of this utility model are as follows: COPET / PET is used as raw material and spun into yarn using a spinning machine. The yarn is then drawn out using airflow until it reaches the upper surface of the circular mesh 340. As the heating tube 220 is energized and releases heat, the operating blower 230 draws in air and directs the heat released by the heating tube 220 into the inner cavity of the drying hood 120. The hot air, after passing through the yarn and the circular mesh 340, is gathered by the air-gathering pipe 130 and enters the inner cavity of the base 110, flowing along the air-gathering pipe 130. The cavity formed by the bottom pipe section and the inner cavity of the base 110 releases upward from multiple guide holes 1101. Finally, the airflow enters from the exhaust hole 3101. As the air pressure inside the exhaust hole 3101 increases, the plug 3103 will eventually be pushed open, and the airflow will be released from the gap between the exhaust hole 3101 and the plug 3103. Guided by the gap formed by the return shroud 360 and the inner wall of the base 110, the rising airflow will be discharged upward from the mesh holes on the side of the circular mesh 340. This process can loosen the fibers after thermoplasticization on the upper surface of the circular mesh 340. Meanwhile, as the magnetic field at the top of the electromagnet 3701 changes regularly, the armature 3703, fixed by the leaf spring 3704, will drive the round mesh 340 to vibrate at high frequency, thereby ensuring that the upper surface of the round mesh 340 is uniformly blown until the fibers are laid flat. Under the action of hot air, the low melting point polyester fiber of COPET melts and bonds with the PET polyester fiber. Under the dual action of the vibration of the round mesh 340 and the airflow rising along its side mesh, the thermoplasticized fibers will be safely peeled off from the upper surface of the round mesh 340.

[0028] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A nonwoven fabric rotary hot air dryer, comprising a hot drying mechanism (100), characterized in that, It also includes a heating assembly (200) mounted on the hot drying mechanism (100) and a thermoplastic anti-stick mechanism (300) mounted inside the hot drying mechanism (100); The hot drying mechanism (100) includes a drying hood (120), and two rectangular wire feeding covers (140) are fixedly installed on both sides of the drying hood (120). The heating assembly (200) includes a cover (210) fixedly installed at the top of the drying hood (120), and a heating tube (220) is installed inside the cover (210). The thermoplastic anti-stick mechanism (300) includes a circular mesh (340) and an inner protective cover (310), and an exhaust hole (3101) is provided inside the inner protective cover (310). Four vertical rods (320) are fixedly installed on the top of the inner protective cover (310). Springs (330) are provided on the outside of the vertical rods (320). The circular mesh (340) is movably installed outside the four vertical rods (320), and the upper surface of the circular mesh (340) is aligned with the bottom surface of the inner cavity of the two rectangular wire feeding covers (140).

2. The nonwoven fabric rotary hot air dryer according to claim 1, characterized in that, The hot drying mechanism (100) also includes a base (110) fixedly installed at the bottom of the drying hood (120). A gas-gathering pipe (130) is fixedly installed inside the base (110). The top of the base (110) is provided with a plurality of evenly distributed guide holes (1101), and the gas-gathering pipe (130) is fixedly installed in the middle of the base (110).

3. The nonwoven fabric rotary hot air dryer according to claim 1, characterized in that, The thermoplastic anti-stick mechanism (300) also includes two arc-shaped pads (350) fixedly installed on the inner wall of the drying hood (120). The drying hood (120) is equipped with an internal protective cover (310). The outer wall of the internal protective cover (310) is provided with a vertical groove, and a control unit (370) is installed in the vertical groove. An electromagnet (3701) and an armature (3703) are installed in the control unit (370). A coil (3702) is wound around the outside of the electromagnet (3701). A leaf spring (3704) is fixedly installed on the armature (3703), and the other end of the leaf spring (3704) is fixedly installed on the inner wall of the control unit (370).

4. A nonwoven fabric rotary hot air dryer according to claim 1, characterized in that, A plug (3103) is movably installed in the slot at the top of the built-in protective cover (310). A tension spring (3102) is fixedly installed at the bottom of the plug (3103), and the bottom end of the tension spring (3102) is fixedly installed on the wall of the vent hole (3101).

5. A nonwoven fabric rotary hot air dryer according to claim 3, characterized in that, The top end of the armature (3703) is fixedly mounted on the circular mesh (340).

6. A nonwoven fabric rotary hot air dryer according to claim 1, characterized in that, A blower (230) is fixedly installed on the top of the cover (210), and the blower (230) is connected to the inner cavity of the cover (210).

7. A nonwoven fabric rotary hot air dryer according to claim 1, characterized in that, The top of the built-in protective cover (310) is fixedly installed with a return shroud (360), and the diameter of the bottom of the return shroud (360) is the same as the diameter of the circular mesh (340).

8. A nonwoven fabric rotary hot air dryer according to claim 2, characterized in that, The port at the top of the gas-gathering tube (130) is located directly below the return shroud (360), and the outer wall of the top of the gas-gathering tube (130) is adapted to fit against the inner wall of the built-in protective cover (310).

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