Hot pressing device for non-woven fabric processing

Abstract

The invention relates to the technical field of non-woven fabric processing, in particular to a hot-pressing device for non-woven fabric processing, which comprises a rack and a fabric body penetrating through the rack, and a plurality of hot-pressing assemblies are movably arranged on the rack. The thermal insulation shell is symmetrically and movably installed on the rack and used for clamping a cloth body, the movable block is movably installed in the thermal insulation shell, the movable block comprises an extrusion part and a pair of heating cavities which are symmetrically distributed, and the two heating cavities are each provided with an air conveying pipe for hot air to flow. According to the hot pressing device for non-woven fabric processing, the two air conveying pipes distributed in a staggered mode work together, hot air heats filaments in a fabric body, the hot air can penetrate through the partition plates to flow anticlockwise at the moment, the hot air is circulated, the filaments in the fabric body are fully heated through the hot air, then the two air conveying pipes in the other set work, and the filaments in the fabric body are fully heated through the hot air. The hot air flows clockwise, the filaments in the cloth body are heated again, and the situation that the filaments of the cloth body are heated insufficiently due to the fact that the hot air penetrates through the cloth body to be cooled is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of non-woven fabric processing, and in particular to a hot pressing device for non-woven fabric processing. Background Art

[0002] Non-woven fabric is a kind of fabric made of directional or random fiber stacking and bonding. It has excellent water permeability and air permeability, and has unique resilience and flexibility, so it is widely used.

[0003] According to the publication (announcement) number CN111055579B, the publication (announcement) date is 2021-08-24, and a hot press for non-woven fabric processing is disclosed, the structure of which includes a base, a support plate, a bracket, a cylinder, a guide rod, a hot pressing structure, an insulating plate, a connector, and a wire tube. The bracket is an L-shaped structure and is vertically installed inverted on the top of the base. The cylinder is vertically installed on the cross frame of the bracket and the telescopic rod is connected to the insulating plate. The hot pressing structure is connected to the hot pressing structure through four groups of connectors. The guide rod is divided into two and is installed on the left and right sides of the cylinder. The device is provided with a stroking device in the middle of the electric heating plate. A steel ball is installed at the bottom of the toggle rod on the stroking device. The rotation of the toggle rod drives the steel ball to roll, and the bulging air bag in the middle of the non-woven fabric is flattened to prevent wrinkles in the middle of the non-woven fabric due to bulges during hot pressing.

[0004] In the prior art including the above patents, when producing non-woven fabrics by meltblowing, the raw materials are generally melted first, and then the molten raw materials are pressed into the molding port, the molding port squeezes the raw materials into filaments, and then the filaments are sprayed to the predetermined position, and a large number of filaments are stacked to form non-woven fabrics. The fibers of the non-woven fabrics produced in this way are relatively loose, and the gaps between the fibers are large. Extrusion treatment is required to make the connection between the fibers tighter and increase the density of the non-woven fabric. However, the temperature of the filaments gradually decreases after being sprayed out, and they need to be heated and then extruded. Most of the existing hot pressing equipment heats from both sides of the non-woven fabric, and the filaments inside the non-woven fabric are not fully heated. During the extrusion process, only the filaments on the surface of the fabric are melted and adhered again, and the gaps between the filaments inside the non-woven fabric are still relatively large, and the density of the non-woven fabric has not changed much. Summary of the invention

[0005] The purpose of the present invention is to provide a hot pressing device for nonwoven fabric processing, aiming to solve the above problems.

[0006] In order to achieve the above-mentioned object, the present invention provides a hot pressing device for non-woven fabric processing, comprising a frame and a cloth body passing through the frame, a plurality of hot pressing components movably arranged on the frame, the hot pressing components comprising a heat preservation shell symmetrically movably mounted on the frame and used for clamping the cloth body and a movable block movably mounted in the heat preservation shell, the movable block comprising an extrusion portion and a pair of symmetrically distributed heating chambers, both of the heating chambers are provided with air pipes for hot air flow, and the two staggered air pipes in the same hot pressing assembly are a group, wherein:

[0007] The two groups of air delivery pipes work alternately to allow hot air to pass through the partition between the heating chambers and flow counterclockwise or clockwise between the two pairs of heating chambers, and the movable block moves to allow the pressing part to press the heated cloth.

[0008] Preferably, two groups of one-way valves in opposite directions and a sealing plate for blocking any group of one-way valves are provided on the partition.

[0009] Preferably, a first movable plate and a second movable plate are respectively provided in the pair of heating chambers, and the first movable plate and the second movable plate are respectively provided with air outlets connected to two air pipes.

[0010] Preferably, a support plate for supporting the cloth body is provided on the first movable plate, and the first movable plate moves to a predetermined position so that the support plate abuts against the cloth body.

[0011] Preferably, a channel communicating with the gas pipe is provided in the first movable plate, a plug is provided on the top of the channel, and a connecting column extending into the channel is provided on the support plate.

[0012] Preferably, a sealing ring for sealing the air outlet thereon is slidably provided on the first movable plate, and the first movable plate moves to a predetermined position so that the plugging block drives the sealing ring to move.

[0013] Preferably, a receiving bucket for receiving hot air is provided on the plug block, and a plug rod for fixing the connecting column is provided on the first movable plate.

[0014] Preferably, an arc-shaped groove is provided on the heat-insulating shell, and the movable block moves along the arc-shaped groove so that the extrusion part presses the heated cloth body.

[0015] Preferably, a pressing frame for pressing the movable block toward the cloth body is slidably provided inside the heat-insulating shell.

[0016] Preferably, the frame is provided with a conveyor belt corresponding to the heating assembly and a guide groove for guiding the movement of the heat-insulating shell, and the conveyor belt moves so that the multiple heat-pressing assemblies alternately heat-press the cloth body.

[0017] In the above technical scheme, the present invention provides a hot pressing device for non-woven fabric processing, which has the following beneficial effects: when working, hot air enters two air pipes of the same group from two connecting pipes, and enters the heating chamber from the group of air pipes, the upper air pipe sprays hot air downward, the hot air passes through the cloth body and enters the heating chamber below, the lower air pipe sprays hot air upward, the hot air passes through the cloth body and enters the heating chamber above, the two staggered air pipes work together, the hot air heats the filaments in the cloth body, and At this time, the hot air can pass through the partition and flow counterclockwise, allowing the hot air to circulate, so that the hot air can fully heat the filaments in the cloth. Then the two air pipes in the other group work, allowing the hot air to flow clockwise and heat the filaments in the cloth again, avoiding insufficient heating of some filaments in the cloth due to the cooling of the hot air passing through the cloth. After the heating work is completed, the two movable blocks in the hot pressing assembly move in the corresponding insulation shells respectively, and the extrusion parts on the two movable blocks cooperate to compress the cloth, so that the filaments in the cloth are more tightly connected, thereby increasing the density of the cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the internal structure provided by an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the structure of a guide groove provided in an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the internal structure of a heat-insulating shell provided in an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the internal structure of an active block provided in an embodiment of the present invention;

[0024] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0025] Figure 7 for Figure 5 Enlarged view of point B in the middle;

[0026] Figure 8 A schematic diagram of the internal structure of a first movable plate provided in an embodiment of the present invention;

[0027] Fig. 9 for Figure 8 Enlarged view of point C in the middle;

[0028] Fig.10 A schematic diagram of the external structure of the heat-insulating shell provided in an embodiment of the present invention;

[0029] Fig.11 A schematic diagram of a structure in which hot air flows counterclockwise according to an embodiment of the present invention;

[0030] Fig.12 A schematic diagram of the structure of clockwise flow of hot air provided in an embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 1. Hot pressing assembly; 11. Insulation shell; 111. Guide block; 112. Chain; 113. Sprocket; 114. Gear; 116. Arc groove; 117. Air pipe; 118. Connecting pipe; 119. Extrusion frame; 12. Movable block; 121. Heating chamber; 122. Partition; 123. One-way valve; 124. Extrusion part; 125. Sealing plate; 126. Second movable plate; 127. First cable; 128. Tenon rod; 131. First movable plate; 132. Support plate; 133. Connecting column; 134. Insert rod; 135. Sealing ring; 136. Second cable; 137. Block; 138. Receiving bucket; 2. Frame; 21. Guide groove; 22. Conveyor belt; 23. First wedge block; 24. First rack; 25. Second rack; 26. Second wedge block. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] like Figure 1-12 As shown, a hot pressing device for non-woven fabric processing includes a frame 2 and a cloth body passing through the frame 2, a plurality of hot pressing components 1 are movably arranged on the frame 2, the hot pressing component 1 includes a heat preservation shell 11 symmetrically movably mounted on the frame 2 and used for clamping the cloth body, and a movable block 12 movably mounted in the heat preservation shell 11, the movable block 12 includes an extrusion portion 124 and a pair of symmetrically distributed heating chambers 121, the two heating chambers 121 are both provided with an air pipe 117 for hot air flow, and the two staggered air pipes 117 in the same hot pressing component 1 are a group, wherein:

[0035] The two groups of air delivery pipes 117 work alternately to allow hot air to pass through the partitions 122 between the heating chambers 121 and flow counterclockwise or clockwise between the two pairs of heating chambers 121 , and the movable block 12 moves to allow the pressing portion 124 to press the heated cloth.

[0036] Specifically, the heat preservation shell 11 is provided with a connecting pipe 118 connected to the two gas pipes 117, a separator is provided in the middle of the connecting pipe 118, and the separator is connected to the two air pumps so that the two gas pipes 117 can work alternately. A spring is provided between the first movable plate 131 and the movable block 12, and between the second movable plate 126 and the movable block 12. The hot air flows counterclockwise to the Fig.11 Based on the heat, the heat flows clockwise to Fig.12 As evidence.

[0037] Furthermore, the fabric in the above embodiment is specifically non-woven fabric.

[0038] In the above technical solution, when working, the hot air enters the two gas pipes 117 of the same group from the two connecting pipes 118, and enters the heating chamber 121 from the gas pipes 117 of the group. The gas pipe 117 located at the top sprays the hot air downward, and the hot air passes through the cloth body and enters the heating chamber 121 below. The gas pipe 117 located at the bottom sprays the hot air upward, and the hot air passes through the cloth body and enters the heating chamber 121 above. The two staggered gas pipes 117 work together, and the hot air heats the filaments in the cloth body, and at this time the hot air can pass through the partition. 122 flows counterclockwise to circulate the hot air, so that the hot air can fully heat the filaments in the cloth. Then the two air pipes 117 of another group work to make the hot air flow clockwise to heat the filaments in the cloth again, avoiding insufficient heating of some filaments in the cloth due to the cooling of the hot air passing through the cloth. After the heating work is completed, the two movable blocks 12 in the hot pressing assembly 1 move in the corresponding insulation shell 11 respectively, and the extrusion parts 124 on the two movable blocks 12 cooperate to compress the cloth, so that the filaments in the cloth are more tightly connected, thereby improving the density of the cloth.

[0039] As an embodiment further provided by the present invention, two groups of one-way valves 123 in opposite directions and a sealing plate 125 for blocking any group of one-way valves 123 are provided on the partition plate 122 .

[0040] Specifically, a slide groove adapted to the sealing plate 125 is opened on the partition 122, and the bottom cross-section of the partition 122 is an isosceles trapezoid, so that the contact area between the partition 122 and the cloth body is smaller, which is convenient for separating the two heating chambers 121 on the movable block 12, and will not block too much cloth body, resulting in insufficient heating of the middle part of the cloth body. A spring is arranged between the sealing plate 125 and the partition 122.

[0041] Furthermore, when the hot air needs to flow clockwise, the sealing plate 125 moves along the slide groove on the partition 122, so that the sealing plate 125 blocks the one-way valve 123 flowing counterclockwise. At this time, the hot air can pass through the one-way valve 123 flowing clockwise, so that the hot air in the four heating chambers 121 in the two movable blocks 12 of a hot pressing assembly 1 flows clockwise, so that the hot air can fully heat the filaments in the cloth.

[0042] As another embodiment further provided by the present invention, a pair of heating chambers 121 are respectively provided with a first movable plate 131 and a second movable plate 126 , and the first movable plate 131 and the second movable plate 126 are respectively provided with air outlets connected to two air pipes 117 .

[0043] Specifically, when the hot air flows counterclockwise, the hot air enters the first movable plate 131 through the air pipe 117 on the first movable plate 131, and is ejected from the air outlet on the first movable plate 131 to heat the cloth. At the same time, the first movable plate 131 moves closer to the cloth, so that the air pressure close to the cloth in the heating chamber 121 increases, thereby improving the ability of the hot air to pass through the intricate pores in the cloth, so that the hot air can heat the filaments in the middle of the cloth.

[0044] As another embodiment further provided by the present invention, a support plate 132 for supporting the cloth is disposed on the first movable plate 131, and the first movable plate 131 moves to a predetermined position so that the support plate 132 abuts against the cloth.

[0045] Specifically, after the hot air flows counterclockwise, the first movable plate 131 moves to a predetermined position and no longer moves downward. At this time, the support plate 132 on the first movable plate 131 moves closer to the cloth and gradually supports the cloth. Then the hot air flows clockwise to heat the cloth from the other side. The support plate 132 supports the cloth to prevent the hot air from the other side from excessively pressing the heated cloth, causing the cloth to stretch and wrinkle.

[0046] Furthermore, the support plate 132 in the above embodiment may be a porous air-permeable plate.

[0047] As another embodiment further provided by the present invention, a channel connected to the gas pipe 117 is opened in the first movable plate 131, a plug 137 is arranged on the top of the channel, and a connecting column 133 extending into the channel is arranged on the support plate 132.

[0048] Specifically, a spring is provided between the plug 137 and the first movable plate 131 , and a spring is provided between the connecting column 133 and the first movable plate 131 .

[0049] Furthermore, in the process of the first movable plate 131 moving closer to the cloth body, the block 137 seals the channel. At this time, the hot air input by the air pipe 117 can only enter the heating chamber 121 through the air outlet on the first movable plate 131 and contact the cloth body. When the first movable plate 131 moves to a predetermined position, the block 137 moves, and the hot air input by the air pipe 117 contacts the connecting column 133 through the channel on the first movable plate 131, and pushes the connecting column 133 and the support plate 132 to move, so that the support plate 132 gradually fits on the cloth body and supports the cloth body.

[0050] As another embodiment further provided by the present invention, a sealing ring 135 for sealing the air outlet thereon is slidably provided on the first movable plate 131 , and the first movable plate 131 moves to a predetermined position so that the plug 137 drives the sealing ring 135 to move.

[0051] Specifically, a spring is provided between the sealing ring 135 and the first movable plate 131 , a second cable 136 is provided between the plug 137 and the sealing ring 135 , and a flow channel connecting the air outlet and the air delivery pipe 117 is provided on the second movable plate 126 .

[0052] Furthermore, during the movement of the plug block 137, the plug block 137 drives the sealing ring 135 to move through the second cable 136, and the sealing ring 135 seals the flow channel in the first movable plate 131. At this time, the hot air input by the gas pipe 117 can only flow through the channel in the first movable plate 131, thereby pushing the connecting column 133 and the support plate 132 to move closer to the cloth body and gradually support the cloth body.

[0053] As another embodiment further provided by the present invention, a receiving bucket 138 for receiving hot air is provided on the plug block 137 , and an insert rod 134 for fixing the connecting column 133 is provided on the first movable plate 131 .

[0054] Specifically, a spring is arranged between the insertion rod 134 and the first movable plate 131, a groove adapted to the end of the insertion rod 134 is arranged on the partition 122, a slope is arranged at the bottom of one end of the insertion rod 134 close to the partition 122, a slope is arranged at the bottom of one end of the insertion rod 134 close to the connecting column 133, and a groove adapted to the end of the insertion rod 134 is arranged on the connecting column 133.

[0055] Furthermore, in the process of the first movable plate 131 approaching the cloth body, the receiving bucket 138 receives the hot air to push the plug 137 to move a short distance, and the second cable 136 cannot drive the sealing ring 135 to close the flow channel in the first movable plate 131. Although the channel is opened, the connecting column 133 is fixed on the first movable plate 131 by the plug rod 134, and the hot air cannot push the connecting column 133 and the support plate 132 to move relative to the first movable plate 131. The first movable plate 131 continues to move, and the plug rod 134 gradually approaches the groove on the partition 122. When the first movable plate 131 moves to the predetermined position, the plug rod 134 is directly opposite to the groove on the partition 122. The plug 137 is inserted into the groove on the partition 122 under the action of the spring. At this time, the plug 134 is separated from the connecting column 133, and the connecting column 133 and the support plate 132 can approach the cloth body. The hot gas pushes the receiving bucket 138 and the plug 137 to move, and the hot gas enters the channel on the first movable plate 131, pushing the support plate 132 to approach the cloth body. At this time, the moving space and movement amplitude of the plug 137 are increased, and it drives the sealing ring 135 through the second cable 136 to close the flow channel in the first movable plate 131. The hot gas input by the gas pipe 117 can only enter the channel and push the connecting column 133 and the support plate 132 to move, and the support plate 132 gradually rests on the cloth body.

[0056] As another embodiment further provided by the present invention, an arc groove 116 is formed on the heat-insulating shell 11, and the movable block 12 moves along the arc groove 116 so that the pressing part 124 presses the heated cloth.

[0057] Specifically, a chain 112 is provided on the heat-insulating shell 11 , the movable block 12 is rotatably mounted on the chain 112 , and a sprocket 113 for driving the chain 112 to move is provided on the heat-insulating shell 11 .

[0058] Furthermore, after the heating work is completed, the sprocket 113 drives the chain 112 to move, and then drives the movable block 12 to move along the arc groove 116 on the insulation shell 11. In the process of the movable block 12 gradually moving away from the cloth body along the arc groove 116, the movable block 12 is separated from the cloth body to protect the cloth body and prevent the cloth body from being torn by the movable block 12. When the movable block 12 gradually approaches the cloth body along the arc groove 116, the extrusion portion 124 of the movable block 12 obliquely squeezes the cloth body, and the movable block 12 has a short lateral movement after contacting the cloth body, which can push down the protruding burrs on the cloth body and make the burrs and the fibers on the cloth body re-bond together, thereby improving the flatness of the cloth surface.

[0059] As another embodiment further provided by the present invention, the inner sliding of the heat-insulating shell 11 is provided with an extrusion frame 119 for extruding the movable block 12 toward the cloth body, and the frame 2 is provided with a conveyor belt 22 corresponding to the heating component and a guide groove 21 for guiding the movement of the heat-insulating shell 11, and the conveyor belt 22 moves to allow multiple hot pressing components 1 to alternately hot press the cloth body.

[0060] Specifically, a spring is provided between the extrusion frame 119 and the insulation shell 11, the shape of the guide groove 21 is specifically a right-angled trapezoid, a guide block 111 adapted to the guide groove 21 is provided on the insulation shell 11, and a slope adapted to the inclined portion of the guide groove 21 is provided on the guide block 111, a conveyor belt 22 for driving the insulation shell 11 to move is provided on the frame 2, and a tenon rod 128 extending to the outside of the insulation shell 11 is provided on the first movable plate 131 and the second movable plate 126, and a tenon rod 128 for pushing the first movable plate 131 and the second movable plate 126 are provided on the frame 2. 31, a first wedge block 23 for moving the tenon rod 128 on the second movable plate 126, and a second wedge block 26 for pushing the tenon rod 128 on the second movable plate 126 to move, a notch for the tenon rod 128 to move is opened on the insulation shell 11, a gear 114 is arranged on the sprocket 113, and the frame 2 is provided with first racks 24 and second racks 25 which are staggered and distributed respectively, the first racks 24 and the second racks 25 are respectively meshed with the top and the bottom of the gear 114, and a first cable 127 is arranged between the first movable plate 131 and the sealing plate 125.

[0061] Furthermore, during operation, both ends of the cloth are fixed by rollers and are moved from the frame 2 under the drive of the rollers. The conveyor belt 22 drives the insulation shell 11 to move along the inclined portion of the guide groove 21 through the guide block 111, and gradually enters the horizontal portion of the guide groove 21 located below. The insulation shell 11 and the movable block 12 move closer to the cloth. The two insulation shells 11 in the same hot pressing assembly 1 cooperate to clamp the cloth to form a closed space. The movable block 12 cooperates to clamp and extrude the cloth. At this time, the moving direction and moving speed of the hot pressing assembly 1 and the cloth are the same. The connecting pipe 118 inputs hot air to the air pipe 117 on the first movable plate 131, and the first wedge block 23 moves the tenon rod 128 on the first movable plate 131 to push the first movable plate 131 closer to the cloth. The hot air passes through the cloth and heats the filaments in the cloth. The hot air flows counterclockwise in the four heating chambers 121 to further heat the cloth. The filaments in the cloth body are moved, and the distance between the first movable plate 131 and the sealing plate 125 gradually decreases, the first cable 127 is relaxed, and when the first movable plate 131 moves to the predetermined position, the support plate 132 is unlocked, and the sealing plate 125 seals the counterclockwise one-way valve 123, and the hot pressing assembly 1 continues to move, the first wedge block 23 remains in contact with the tenon rod 128 on the first movable plate 131, and the tenon rod 128 on the second movable plate 126 gradually contacts the second wedge block 26, and the second wedge block 26 pushes the second movable plate 126 to move closer to the cloth body, and the connecting pipe 118 simultaneously delivers hot air to the two air pipes 117, the air pipe 117 on the first movable plate 131 pushes the support plate 132 to move to support the cloth body, and the second movable plate 126 pressurizes the corresponding heating chamber 121, so that the hot air in the four heating chambers 121 flows clockwise to further heat the filaments in the cloth body.

[0062] After the heating work is completed, the gas delivery pipe 117 stops delivering hot gas, and the connecting column 133 and the support plate 132 move away from the cloth body under the action of the spring until the plug 134 is directly opposite to the groove on the connecting column 133, and the plug 137 seals the channel on the first movable plate 131 again, the second cable 136 is relaxed, and the sealing ring 135 moves relative to the first movable plate 131, and the flow channel in the first movable plate 131 is reopened, the first wedge block 23 is separated from the tenon rod 128 on the first movable plate 131, and the second wedge block 26 is separated from the second The tenon rod 128 on the movable plate 126 is separated, and the first movable plate 131 and the second movable plate 126 move away from the cloth body under the action of the spring, and the slope on the insertion rod 134 abuts against the side wall of the groove of the partition 122 and gradually retracts into the first movable plate 131, and the end of the insertion rod 134 is inserted into the connecting column 133, fixing the connecting column 133 on the first movable plate 131, and the first movable plate 131 pulls the sealing plate 125 to move through the first cable 127, and the sealing plate 125 seals the clockwise one-way valve 123.

[0063] The hot pressing assembly 1 continues to move, the gear 114 contacts the first rack 24, the first rack 24 pushes the gear 114 to rotate, the gear 114 drives the chain 112 to move through the sprocket 113, and then drives the movable block 12 to move along the arc groove 116, and the extrusion frame 119 pushes the extrusion part 124 of the movable block 12 to extrude the cloth, then the gear 114 separates from the first rack 24 and contacts the second rack 25, the second rack 25 drives the gear 114 to rotate in the opposite direction, drives the movable block 12 to move in the opposite direction along the arc groove 116, then the conveyor belt 22 drives the insulation shell 11 to move away from the cloth body and return to the initial position along the guide groove 21, the hot pressing work of this part of the cloth body is completed, and then the subsequent multiple hot pressing assemblies 1 work in sequence to uniformly hot press each part of the cloth body to increase the density of the cloth body.

[0064] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A hot pressing device for nonwoven fabric processing, characterized in that: The invention comprises a frame (2) and a cloth body passing through the frame (2), wherein a plurality of hot pressing assemblies (1) are movably arranged on the frame (2), wherein the hot pressing assemblies (1) comprise a heat-insulating shell (11) symmetrically and movably mounted on the frame (2) and used for clamping the cloth body, and a movable block (12) movably mounted in the heat-insulating shell (11), wherein the movable block (12) comprises an extrusion portion (124) and a pair of symmetrically distributed heating chambers (121), wherein both heating chambers (121) are provided with an air supply pipe (117) for hot air flow, and the two staggered air supply pipes (117) in the same hot pressing assembly (1) form a group, wherein: The two groups of air delivery pipes (117) work alternately to allow hot air to pass through the partition (122) between the heating chambers (121) and flow counterclockwise or clockwise between the two pairs of heating chambers (121), and the movable block (12) moves to allow the pressing portion (124) to press the heated cloth.

2. A hot pressing device for nonwoven fabric processing according to claim 1, characterized in that: The partition plate (122) is provided with two groups of one-way valves (123) in opposite directions and a sealing plate (125) for blocking any one group of one-way valves (123).

3. A hot pressing device for nonwoven fabric processing according to claim 1, characterized in that: A first movable plate (131) and a second movable plate (126) are respectively provided in the pair of heating chambers (121); and air outlets communicating with two air delivery pipes (117) are respectively provided on the first movable plate (131) and the second movable plate (126).

4. A hot pressing device for nonwoven fabric processing according to claim 3, characterized in that: A support plate (132) for supporting the cloth body is arranged on the first movable plate (131), and the first movable plate (131) moves to a predetermined position so that the support plate (132) abuts against the cloth body.

5. A hot pressing device for nonwoven fabric processing according to claim 4, characterized in that: The first movable plate (131) is provided with a channel connected to the gas delivery pipe (117), a plug (137) is provided at the top of the channel, and the support plate (132) is provided with a connecting column (133) extending into the channel.

6. A hot pressing device for nonwoven fabric processing according to claim 5, characterized in that: A sealing ring (135) for sealing the air outlet thereon is slidably disposed on the first movable plate (131), and the first movable plate (131) moves to a predetermined position so that the plug (137) drives the sealing ring (135) to move.

7. A hot pressing device for nonwoven fabric processing according to claim 5, characterized in that: The plug block (137) is provided with a receiving bucket (138) for receiving hot air, and the first movable plate (131) is provided with an insertion rod (134) for fixing the connecting column (133).

8. A hot pressing device for nonwoven fabric processing according to claim 1, characterized in that: The heat-insulating shell (11) is provided with an arc-shaped groove (116), and the movable block (12) moves along the arc-shaped groove (116) so that the pressing part (124) presses the heated cloth body.

9. A hot pressing device for nonwoven fabric processing according to claim 1, characterized in that: The heat-insulating shell (11) is slidably provided with an extrusion frame (119) for extruding the movable block (12) toward the cloth body.

10. A hot pressing device for nonwoven fabric processing according to claim 1, characterized in that: The frame (2) is provided with a conveyor belt (22) corresponding to the heating assembly and a guide groove (21) for guiding the movement of the heat-insulating shell (11); the conveyor belt (22) moves so that the plurality of heat-pressing assemblies (1) alternately heat-press the cloth body.

Images