Production process of three-layer laminated nonwoven fabric with pearl cotton interlayer

Abstract

The present invention discloses a production process of a three-layer coated non-woven fabric with an EPP interlayer, relates to the technical field of non-woven fabric production, and comprises the following steps: Step 1: the upper surface layer, the core layer and the lower surface layer are compounded together by spraying glue to form a composite non-woven fabric; Step 2: after drying the composite non-woven fabric, the composite non-woven fabric is densely perforated by a puncher, and the perforation aperture is less than 0.1 mm; Step 3: the perforated composite non-woven fabric is wound or cut to shape. The present invention adopts a method of bonding and fixing three layers of non-woven fabric after coating, wherein the core layer adopts a double-sided EPP material with convex dots, so that a small space is left after the upper surface layer, the lower surface layer and the core layer are fixed to provide warmth retention performance; the composite material is densely perforated to ensure that the material has a microporous structure, and after being made into a medical pad body or a thermal insulation blanket or a thermal insulation suit, the body feels more comfortable.

Description

Technical Field

[0001] The invention relates to the technical field of non-woven fabric production, in particular to a production process of a three-layer laminated non-woven fabric with a pearl cotton interlayer. Background Art

[0002] Non-woven fabrics, also known as nonwoven fabrics, are fiber materials made of oriented or randomly arranged fibers through friction, embracing, bonding or a combination of these methods. At present, in the production of non-woven fabrics, in order to improve the thermal insulation performance of non-woven fabrics, two or more layers of non-woven fabric materials or other functional fabrics with different characteristics are usually bonded together through lamination and spraying to form a composite non-woven fabric with specific functionality. When bonding adjacent materials, it is usually necessary to use spraying, but the glue bonding method easily causes the colloid to accumulate between adjacent layer materials, affecting the breathability and softness of the composite material, and the body feel is not good when used.

[0003] In order to achieve the purpose of making the colloids between adjacent layers of the composite non-woven fabric material evenly distributed and the composite material having breathable and warm-keeping properties, a production process of a three-layer laminated non-woven fabric with an EPP interlayer is provided. Summary of the invention

[0004] The purpose of the present invention is to provide a production process of a three-layer laminated nonwoven fabric with a pearl cotton interlayer in order to solve the technical problems in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a production process of a three-layer laminated nonwoven fabric with an EPE interlayer, comprising the following steps:

[0006] Step 1: prepare the upper surface layer, the core layer and the lower surface layer non-woven fabric materials, wherein the core layer is a pearl cotton non-woven fabric with convex dots on both sides; the upper surface layer, the core layer and the lower surface layer are compounded together by spraying glue to form a composite non-woven fabric;

[0007] Step 2: After drying the composite non-woven fabric, the composite non-woven fabric is passed through a punching machine to perform dense perforations on the composite non-woven fabric, wherein the perforation diameter is less than 0.1 mm;

[0008] Step 3: Winding or cutting the perforated composite non-woven fabric into shape;

[0009] The glue spraying and compounding operations in step one are performed through a coating glue spraying device, which includes a base, a lower pressure roller is arranged above the base, a cloth roll is arranged above the lower pressure roller, the cloth roll is sleeved on the outer wall of the mounting shaft, the top of the base is located on one side of the lower pressure roller and is fixedly connected to a mounting frame, a nozzle is installed on the inner side of the mounting frame, the lower pressure roller and the cloth roll are installed on the base through a mounting mechanism, and the nozzle performs a spraying operation through a spray mechanism.

[0010] As a further solution of the present invention: the mounting mechanism includes a movable frame, the movable frame is slidably connected to the inside of the base and extends to the top of the base, the lower pressure roller is rotatably connected to the outer wall of the movable frame, a first motor is installed inside the base, the output end of the first motor is connected to a first threaded rod, the first threaded rod runs through the movable frame, the top of the base is located on the other side of the lower pressure roller and is fixedly connected to a fixed frame, the top of the fixed frame is provided with a mounting groove for the mounting shaft to connect and enter, a slot is provided on one side of the inner wall of the mounting groove, a displacement frame is slidably connected to the inside of the fixed frame on the side of the mounting groove away from the slot, the top of the displacement frame extends to the top of the fixed frame, the top of the displacement frame is rotatably connected to an insertion rod, the top of the fixed frame is rotatably connected to a rotating block, the bottom end of the rotating block is fixedly connected to a second threaded rod running through the displacement frame, the inside of the fixed frame is located on one side of the displacement frame and is slidably connected to a positioning block, a first spring is connected between the positioning block and the fixed frame, and the inside of the fixed frame is located below the positioning block and is slidably connected to a top rod extending out of the fixed frame.

[0011] As a further solution of the present invention: the spray mechanism includes a transverse groove, which is opened at the top of the mounting frame, and the inner wall of the transverse groove is slidably connected with a mounting block, the top of the mounting block is fixedly connected with a feed pipe, and the feed pipe is connected to an external glue storage device, the outer wall of the mounting block is fixedly connected with a connecting plate, the top of the mounting frame is symmetrically fixedly connected with a vertical plate, the outer wall of the vertical plate is installed with a second motor, the output end of the second motor is connected with a reciprocating screw rod, the reciprocating screw rod passes through the connecting plate, the interior of the mounting frame is slidably connected with a slider extending to the inner cavity of the transverse groove, a second spring is connected between the slider and the mounting frame, the interior of the mounting frame is rotatably connected with a spur gear at the bottom end of the slider, the interior of the mounting frame is slidably connected with a toothed plate at the bottom end of the spur gear, and the toothed plate extends to the inner wall of the mounting frame.

[0012] As a further solution of the present invention: the spray mechanism also includes a fixed plate, which is fixedly connected to the outer wall of the movable frame, and the fixed plate extends to the inner side of the mounting frame, one end of the lower pressure roller is located inside the movable frame and is fixedly connected to a ratchet, and the inside of the movable frame is located at the top of the ratchet and is slidably connected with a card block, and a third spring is connected between the card block and the movable frame, and a displacement seat is slidably connected between the fixed plate and the movable frame, and the displacement seat is located at the bottom end of the ratchet, and a fourth spring is connected between the displacement seat and the movable frame, and an extrusion block is provided at one end of the displacement seat away from the fourth spring, and the extrusion block is slidably connected to the inside of the fixed plate and extends out of the fixed plate, and a tooth block extending out of the displacement seat is slidably provided inside the displacement seat, and a fifth spring is connected between the tooth block and the displacement seat.

[0013] As a further solution of the present invention: a first threaded hole is formed on the outer wall of the movable frame, and the first threaded hole matches the first threaded rod.

[0014] As a further solution of the present invention: a second threaded hole is formed on the outer wall of the displacement frame, the second threaded hole matches the second threaded rod, a ratchet is formed on the outer wall of the displacement frame, and one end of the positioning block is engaged with the ratchet.

[0015] As a further solution of the present invention: a first inclined surface is arranged at the bottom end of the positioning block, and the first inclined surface is in contact with the top end of the push rod.

[0016] As a further solution of the present invention: the inner wall of the transverse groove fits with the outer wall of the mounting block, the outer wall of the connecting plate is provided with a connecting hole, and the inner wall of the connecting hole is provided with a ball matching the reciprocating screw.

[0017] As a further solution of the present invention: the outer walls of the slider and the tooth plate are both provided with tooth grooves, the tooth grooves are meshed with the spur gears, one end of the displacement seat is provided with a second inclined surface, the outer wall of the extrusion block is in contact with the second inclined surface, one end of the clamping block is engaged with the ratchet, and the outer wall of the tooth block is provided with ratchet teeth engaged with the ratchet.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention adopts a method of laminating three layers of non-woven fabrics and then bonding and fixing them into one body, wherein the core layer adopts a double-sided pearl cotton material with convex dots, so that a small space is left between the upper surface layer, the lower surface layer and the core layer after being fixed to provide thermal insulation performance; the upper surface layer and the lower surface layer are both medical non-woven fabrics; through the laminating and spraying equipment, the colloidal solution is evenly attached between adjacent materials in an atomized spraying manner to avoid large-area concentrated spraying causing the accumulation of colloids and affecting the air permeability of the composite material; in order to ensure the air permeability of the material, the composite material is subsequently densely perforated to ensure that the material has a microporous structure, and after being made into a medical pad body or a thermal insulation blanket or a thermal insulation suit, the body feels more comfortable.

[0020] 2. By setting up a spraying mechanism, the glue is transported to the nozzle through the feed pipe for spraying. At this time, the second motor drives the mounting block to move back and forth. When the mounting block moves to one end of the horizontal groove, the mounting block contacts the slider, pushing the slider to move, driving the tooth plate to move and contact the extrusion block, pushing the extrusion block to move, and the displacement of the extrusion block drives the displacement seat to move, driving the ratchet to rotate, and the rotation of the ratchet drives the lower pressure roller to rotate, so that after each reciprocating movement of the nozzle, it automatically drives the lower pressure roller to rotate a fixed distance, so that the cloth moves forward a fixed distance, which is convenient for evenly spraying glue on the cloth and simultaneously completing the composite operation of the two layers of fabric.

[0021] 3. By setting up the installation mechanism, the installation shaft is placed into the installation slot, so that the insertion rod and the displacement frame are distributed vertically, and the rotation block is rotated to drive the displacement frame to move. The displacement of the displacement frame drives the insertion rod to move into the slot, and the plane of one end of the insertion rod is in contact with the inner wall of the slot, so that the insertion rod cannot rotate, thereby positioning the installation shaft in the installation slot and completing the installation of the fabric roll; the positioning block and the displacement frame prevent the displacement frame from moving upward, which is convenient for preventing the fabric roll from loosening during use. The fabric roll can only be disassembled after the lower pressure roller releases the clamping of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the coating and glue spraying equipment of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the base of the coating and glue spraying equipment of the present invention;

[0024] Figure 3 It is a schematic diagram of the installation of the installation shaft of the coating and glue spraying equipment of the present invention;

[0025] Figure 4 It is a schematic diagram of the internal structure of the fixing frame of the coating and glue spraying equipment of the present invention;

[0026] Figure 5 It is a schematic structural diagram of the displacement frame of the coating and glue spraying equipment of the present invention;

[0027] Figure 6 It is a schematic diagram of the installation of the nozzle and the mounting block of the coating and glue spraying equipment of the present invention on the mounting frame;

[0028] Figure 7 This is a schematic diagram of the internal structure of the mounting frame of the coating and glue spraying equipment of the present invention;

[0029] Figure 8 It is a schematic diagram of the installation of the ratchet wheel of the coating and glue spraying equipment of the present invention;

[0030] Fig. 9 It is a schematic diagram of the internal structure of the displacement seat of the coating and glue spraying equipment described in the present invention.

[0031] In the figure: 1, base; 2, lower pressure roller; 3, cloth roll; 4, mounting shaft; 5, mounting frame; 6, nozzle; 7, mounting mechanism; 701, movable frame; 702, first motor; 703, first threaded rod; 704, fixed frame; 705, mounting groove; 706, slot; 707, rotating block; 708, second threaded rod; 709, displacement frame; 710, insertion rod; 711, positioning block; 712, first spring; 713, ejector rod; 8, spray mechanism; 801, mounting block; 802, feed pipe; 803, transverse groove; 804, connecting plate; 805, vertical plate; 806, second motor; 807, reciprocating screw; 808, slider; 809, second spring; 810, spur gear; 811, tooth plate; 812, fixing plate; 813, ratchet; 814, clamping block; 815, third spring; 816, displacement seat; 817, fourth spring; 818, extrusion block; 819, tooth block; 820, fifth spring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0034] See also Figures 1 to 9 In an embodiment of the present invention, a production process of a three-layer laminated nonwoven fabric with an EPE interlayer comprises the following steps:

[0035] Step 1: prepare the upper surface layer, the core layer and the lower surface layer non-woven fabric materials, wherein the core layer is a pearl cotton non-woven fabric with convex dots on both sides; the upper surface layer, the core layer and the lower surface layer are bonded together by spraying glue to form a composite non-woven fabric;

[0036] Step 2: After drying the composite non-woven fabric, the composite non-woven fabric is passed through a punching machine to perform dense perforations on the composite non-woven fabric, wherein the perforation diameter is less than 0.1 mm;

[0037] Step 3: Winding or cutting the perforated composite non-woven fabric into shape.

[0038] In this embodiment: the present invention is made of three layers of non-woven fabrics that are laminated and then bonded and fixed into one body, wherein the core layer is made of double-sided pearl cotton material with convex dots, so that a small space is left between the upper surface layer, the lower surface layer and the core layer after being fitted and fixed to provide thermal insulation performance; the upper surface layer and the lower surface layer are both medical non-woven fabrics; through the laminating and spraying equipment, the colloidal solution is evenly attached between adjacent materials in an atomized spraying manner to avoid large-area concentrated spraying causing colloidal accumulation, affecting the air permeability of the composite material; in order to ensure the air permeability of the material, the subsequent composited material is densely perforated to ensure that the material has a microporous structure, and after being made into a medical pad or thermal insulation blanket or thermal insulation clothing, the body feels more comfortable.

[0039] Please refer to Figures 1 to 9The coating and glue spraying equipment used in step one includes a base 1, a lower pressure roller 2 is arranged above the base 1, a cloth roll 3 is arranged above the lower pressure roller 2, the cloth roll 3 is sleeved on the outer wall of the mounting shaft 4, the top of the base 1 is located on one side of the lower pressure roller 2 and is fixedly connected with a mounting frame 5, a nozzle 6 is installed on the inner side of the mounting frame 5, the lower pressure roller 2 and the cloth roll 3 are installed on the base 1 through a mounting mechanism 7, and the nozzle 6 performs a spraying operation through a spraying mechanism 8.

[0040] In this embodiment: the fabric roll 3 is the fabric located at the top, one end of the fabric at the top is moved to the bottom of the lower pressing roller 2, and then the fabric at the bottom is placed on the top of the base 1, the fabric at the top and one end of the fabric at the bottom are fitted and both are located below the lower pressing roller 2, the lower pressing roller 2 is moved downward, and the lower pressing roller 2 squeezes and fits the ends of the two layers of fabric; then the nozzle 6 is started, and the nozzle 6 evenly sprays glue on the upper surface of the fabric at the bottom through the spray mechanism 8, the lower pressing roller 2 rotates to drive the fabric to move, and the double-layer fabric moves to the bottom end of the lower pressing roller 2 for pressing and fitting. After the lower surface layer and the core layer are laminated first, the upper surface can be laminated on the top of the core layer using the same method.

[0041] Please refer to Figures 1 to 5 The mounting mechanism 7 includes a movable frame 701, which is slidably connected to the inside of the base 1 and extends to the top of the base 1. The lower pressure roller 2 is rotatably connected to the outer wall of the movable frame 701. A first motor 702 is installed inside the base 1. The output end of the first motor 702 is connected to a first threaded rod 703. The first threaded rod 703 runs through the movable frame 701. The top of the base 1 is located at the other side of the lower pressure roller 2 and is fixedly connected to a fixed frame 704. The top of the fixed frame 704 is provided with an installation groove 705 for the installation shaft 4 to connect and enter. A slot 706 is provided on one side of the inner wall of the installation groove 705. The interior of the fixed frame 704 is located far from the installation groove 705. A displacement frame 709 is slidably connected to one side of the slot 706, and the top of the displacement frame 709 extends to the top of the fixed frame 704. The top of the displacement frame 709 is rotatably connected to an insertion rod 710, and the top of the fixed frame 704 is rotatably connected to a rotating block 707, and the bottom end of the rotating block 707 is fixedly connected to a second threaded rod 708 that runs through the displacement frame 709. A positioning block 711 is slidably connected to one side of the displacement frame 709 inside the fixed frame 704, and a first spring 712 is connected between the positioning block 711 and the fixed frame 704. A top rod 713 extending from the fixed frame 704 is slidably connected to the inside of the fixed frame 704 below the positioning block 711.

[0042] In this embodiment: when adjusting the height of the lower pressure roller 2, start the first motor 702, the first motor 702 drives the first threaded rod 703 to rotate, the first threaded rod 703 rotates to drive the movable frame 701 to move, the movable frame 701 moves to drive the lower pressure roller 2 to move, thereby adjusting the height of the lower pressure roller 2.

[0043] When installing the cloth roll 3, the rotating plug rod 710 is in a vertical position, and then the installation shaft 4 is placed into the installation groove 705. After completion, the plug rod 710 is rotated so that the plug rod 710 and the displacement frame 709 are vertically distributed, and the rotating block 707 is rotated. The rotation of the rotating block 707 drives the second threaded rod 708 to rotate, and the rotation of the second threaded rod 708 drives the displacement frame 709 to move. The displacement of the displacement frame 709 drives the plug rod 710 to move into the slot 706. The plane of one end of the plug rod 710 is in contact with the inner wall of the slot 706, so that the plug rod 710 cannot rotate, thereby positioning the installation shaft 4 in the installation groove 705, and completing the installation of the cloth roll 3.

[0044] While installing the fabric roll 3, the displacement rack 709 moves downward, and the positioning block 711 slides along the outer wall of the displacement rack 709. The positioning block 711 is acted upon by the elastic force of the first spring 712, so that the displacement rack 709 cannot move upward, thereby preventing the displacement rack 709 from moving upward and causing the installation shaft 4 to loosen during use; when the movable rack 701 moves to drive the lower pressure roller 2 to move upward, the movable rack 701 moves and contacts the push rod 713, pushing the push rod 713 to move, and the push rod 713 moves and pushes the positioning block 711 to move and separate from the displacement rack 709, thereby allowing the displacement rack 709 to move upward. This design can prevent the fabric roll 3 from loosening during use, and the fabric roll 3 can be disassembled only after the lower pressure roller 2 releases its grip on the fabric.

[0045] Please refer to Figures 6 to 9The spray mechanism 8 includes a transverse groove 803, which is opened at the top of the mounting frame 5. The inner wall of the transverse groove 803 is slidably connected with a mounting block 801. The top of the mounting block 801 is fixedly connected with a feed pipe 802, and the feed pipe 802 is connected to an external glue storage device. The outer wall of the mounting block 801 is fixedly connected with a connecting plate 804. The top of the mounting frame 5 is symmetrically fixedly connected with a vertical plate 805. The outer wall of the vertical plate 805 is installed with a second motor 806. The output of the second motor 806 The outlet end is connected with a reciprocating screw rod 807, which passes through the connecting plate 804. The interior of the mounting frame 5 is slidably connected with a slider 808 extending to the inner cavity of the transverse groove 803. A second spring 809 is connected between the slider 808 and the mounting frame 5. The interior of the mounting frame 5 is located at the bottom end of the slider 808 and is rotatably connected with a spur gear 810. The interior of the mounting frame 5 is located at the bottom end of the spur gear 810 and is slidably connected with a tooth plate 811. The tooth plate 811 extends to the inner wall of the mounting frame 5. The spray machine The structure 8 also includes a fixed plate 812, which is fixedly connected to the outer wall of the movable frame 701. The fixed plate 812 extends to the inner side of the mounting frame 5. One end of the lower pressure roller 2 is located inside the movable frame 701 and is fixedly connected to a ratchet 813. The inside of the movable frame 701 is located at the top of the ratchet 813 and is slidably connected to a card block 814. The card block 814 and the movable frame 701 are connected between a third spring 815. The fixed plate 812 and the inside of the movable frame 701 are slidably connected to a displacement seat. 816, the displacement seat 816 is located at the bottom end of the ratchet 813, a fourth spring 817 is connected between the displacement seat 816 and the movable frame 701, an extrusion block 818 is provided at one end of the displacement seat 816 away from the fourth spring 817, the extrusion block 818 is slidably connected to the inside of the fixed plate 812 and extends out of the fixed plate 812, a tooth block 819 is slidably provided inside the displacement seat 816 extending from the displacement seat 816, and a fifth spring 820 is connected between the tooth block 819 and the displacement seat 816.

[0046] In this embodiment, the glue is delivered to the nozzle 6 through the feed pipe 802 for spraying. At this time, the second motor 806 drives the reciprocating screw 807 to rotate. The rotation of the reciprocating screw 807 drives the connecting plate 804 to move back and forth. The movement of the connecting plate 804 drives the mounting block 801 to move back and forth in the transverse groove 803. When the mounting block 801 moves to one end of the transverse groove 803, the mounting block 801 contacts the slider 808, pushing the slider 808 to move, squeezing the second spring 809, and the displacement of the slider 808 drives the spur gear 810 to rotate. The spur gear 810 rotates The tooth plate 811 is driven to move, and the tooth plate 811 is displaced and contacts the extrusion block 818, pushing the extrusion block 818 to move. The displacement of the extrusion block 818 pushes the displacement seat 816 to move, causing the fourth spring 817 to be squeezed. The displacement seat 816 moves through the tooth block 819 to drive the ratchet 813 to rotate, and the rotation of the ratchet 813 drives the lower pressure roller 2 to rotate, so that after each reciprocating movement of the nozzle 6, it automatically drives the lower pressure roller 2 to rotate a fixed distance, and at the same time makes the cloth move forward a fixed distance, so as to facilitate the uniform glue spraying operation on the cloth and simultaneously complete the composite operation of the two layers of fabric.

[0047] When the mounting block 801 moves away from the slider 808, the slider 808 is reset by the elastic force of the second spring 809; the displacement seat 816 is reset by the elastic force of the fourth spring 817. At this time, the ratchet 813 is engaged by the block 814 and cannot be reset and rotated.

[0048] Please refer to Figure 1 to Figure 2 A first threaded hole is formed on the outer wall of the movable frame 701 , and the first threaded hole matches the first threaded rod 703 .

[0049] In this embodiment: the first motor 702 is started, the first motor 702 drives the first threaded rod 703 to rotate, the first threaded rod 703 rotates to drive the movable frame 701 to move, the movable frame 701 moves to drive the lower pressure roller 2 to move, so as to adjust the height of the lower pressure roller 2.

[0050] Please refer to Figure 3 to Figure 4 A second threaded hole is provided on the outer wall of the displacement frame 709, and the second threaded hole matches the second threaded rod 708. A ratchet is provided on the outer wall of the displacement frame 709, and one end of the positioning block 711 is engaged with the ratchet.

[0051] The first spring 712 is used to move the first and second stoppers 710 to the left and right of the locking cam 709, thereby preventing the locking cam 709 from loosening and causing the second stopper 709 to move out of the way.

[0052] Please refer to Figures 4 to 5 The bottom end of the positioning block 711 is provided with a first inclined surface, and the first inclined surface contacts the top end of the push rod 713 .

[0053] In this embodiment: when the movable frame 701 moves to drive the lower pressure roller 2 to move upward, the movable frame 701 moves and contacts the push rod 713, pushing the push rod 713 to move, and the push rod 713 moves to push the positioning block 711 to move and separate from the displacement frame 709, so that the displacement frame 709 can be moved upward.

[0054] Please refer to Figure 6 to Figure 7 The inner wall of the transverse groove 803 is in contact with the outer wall of the mounting block 801 , a connecting hole is provided on the outer wall of the connecting plate 804 , and a ball bearing that matches the reciprocating screw rod 807 is provided on the inner wall of the connecting hole.

[0055] In this embodiment, the operation of the second motor 806 drives the reciprocating screw 807 to rotate, the rotation of the reciprocating screw 807 drives the connecting plate 804 to move back and forth, and the movement of the connecting plate 804 drives the mounting block 801 to move back and forth in the transverse groove 803.

[0056] Please refer to Figures 7 to 9 The outer walls of the slider 808 and the tooth plate 811 are both provided with tooth grooves, which mesh with the spur gear 810. One end of the displacement seat 816 is provided with a second inclined surface. The outer wall of the extrusion block 818 contacts the second inclined surface. One end of the clamping block 814 is engaged with the ratchet 813. The outer wall of the tooth block 819 is provided with ratchet teeth that engage with the ratchet 813.

[0057] In this embodiment: when the mounting block 801 moves to one end of the transverse groove 803, the mounting block 801 contacts the slider 808, pushing the slider 808 to move, causing extrusion on the second spring 809, and the displacement of the slider 808 drives the spur gear 810 to rotate, and the rotation of the spur gear 810 drives the tooth plate 811 to displace, and the tooth plate 811 displaces and contacts the extrusion block 818, pushing the extrusion block 818 to move, and the displacement of the extrusion block 818 drives the displacement seat 816 to move, causing extrusion on the fourth spring 817, and the displacement seat 816 moves through the tooth block 819 to drive the ratchet 813 to rotate, and the rotation of the ratchet 813 drives the lower pressure roller 2 to rotate.

[0058] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A production process for a three-layer laminated nonwoven fabric with an EPE interlayer, characterized in that: The steps include: Step 1: prepare the upper surface layer, the core layer and the lower surface layer non-woven fabric materials, wherein the core layer is a pearl cotton non-woven fabric with convex dots on both sides; the upper surface layer, the core layer and the lower surface layer are compounded together by spraying glue to form a composite non-woven fabric; Step 2: After drying the composite non-woven fabric, the composite non-woven fabric is passed through a punching machine to perform dense perforations on the composite non-woven fabric, wherein the perforation diameter is less than 0.1 mm; Step 3: Winding or cutting the perforated composite non-woven fabric into shape; The glue spraying and compounding operation in step 1 is performed by means of a coating glue spraying device, comprising a base (1), a lower pressure roller (2) is arranged above the base (1), a cloth roll (3) is arranged above the lower pressure roller (2), the cloth roll (3) is sleeved on the outer wall of the mounting shaft (4), the top of the base (1) is located on one side of the lower pressure roller (2) and is fixedly connected to a mounting frame (5), a nozzle (6) is installed on the inner side of the mounting frame (5), the lower pressure roller (2) and the cloth roll (3) are installed on the base (1) by means of a mounting mechanism (7), and the nozzle (6) performs a spraying operation by means of a spraying mechanism (8); The mounting mechanism (7) comprises a movable frame (701), the movable frame (701) being slidably connected to the inside of the base (1) and extending to the top of the base (1), the lower pressure roller (2) being rotatably connected to the outer wall of the movable frame (701), a first motor (702) being installed inside the base (1), the output end of the first motor (702) being connected to a first threaded rod (703), the first threaded rod (703) passing through the movable frame (701), the top end of the base (1) being located on the other side of the lower pressure roller (2) and being fixedly connected to a fixed frame (704), the top end of the fixed frame (704) being provided with a mounting groove (705) for the mounting shaft (4) to connect and enter, a slot (706) being provided on one side of the inner wall of the mounting groove (705), the interior of the fixed frame (704) being located on the mounting groove ( A displacement frame (709) is slidably connected to a side of the displacement frame (705) away from the slot (706); the top end of the displacement frame (709) extends to the top of the fixed frame (704); the top end of the displacement frame (709) is rotatably connected to an insertion rod (710); the top end of the fixed frame (704) is rotatably connected to a rotating block (707); the bottom end of the rotating block (707) is fixedly connected to a second threaded rod (708) that passes through the displacement frame (709); a positioning block (711) is slidably connected to one side of the displacement frame (709) inside the fixed frame (704); a first spring (712) is connected between the positioning block (711) and the fixed frame (704); and a top rod (713) extending from the fixed frame (704) is slidably connected to the inside of the fixed frame (704) below the positioning block (711).

2. The production process of a three-layer laminated nonwoven fabric with an EPE interlayer according to claim 1, characterized in that: The spray mechanism (8) comprises a transverse groove (803), the transverse groove (803) is arranged at the top of the mounting frame (5), the inner wall of the transverse groove (803) is slidably connected to a mounting block (801), the top of the mounting block (801) is fixedly connected to a feed pipe (802), the feed pipe (802) is connected to an external glue storage device, the outer wall of the mounting block (801) is fixedly connected to a connecting plate (804), the top of the mounting frame (5) is symmetrically fixedly connected to a vertical plate (805), the outer wall of the vertical plate (805) is mounted with a second motor (806), and the output end of the second motor (806) is fixedly connected to the output end of the second motor (806). A reciprocating screw rod (807) is connected and the reciprocating screw rod (807) passes through the connecting plate (804); a slider (808) extending to the inner cavity of the transverse groove (803) is slidably connected inside the mounting frame (5); a second spring (809) is connected between the slider (808) and the mounting frame (5); a spur gear (810) is rotatably connected inside the mounting frame (5) at the bottom end of the slider (808); a tooth plate (811) is slidably connected inside the mounting frame (5) at the bottom end of the spur gear (810); the tooth plate (811) extends to the inner wall of the mounting frame (5).

3. The production process of a three-layer laminated nonwoven fabric with an EPE interlayer according to claim 2, characterized in that: The spray mechanism (8) further comprises a fixed plate (812), wherein the fixed plate (812) is fixedly connected to the outer wall of the movable frame (701), and the fixed plate (812) extends to the inner side of the mounting frame (5); one end of the lower pressure roller (2) is located inside the movable frame (701) and is fixedly connected to a ratchet (813); a clamping block (814) is slidably connected to the top end of the ratchet (813) inside the movable frame (701); a third spring (815) is connected between the clamping block (814) and the movable frame (701); a displacement seat is slidably connected between the fixed plate (812) and the inside of the movable frame (701); (816), the displacement seat (816) is located at the bottom end of the ratchet (813), a fourth spring (817) is connected between the displacement seat (816) and the movable frame (701), an extrusion block (818) is provided at one end of the displacement seat (816) away from the fourth spring (817), the extrusion block (818) is slidably connected to the inside of the fixed plate (812) and extends out of the fixed plate (812), a tooth block (819) is slidably provided inside the displacement seat (816) and extends out of the displacement seat (816), and a fifth spring (820) is connected between the tooth block (819) and the displacement seat (816).

4. The production process of a three-layer laminated nonwoven fabric with an EPE interlayer according to claim 1, characterized in that: The outer wall of the movable frame (701) is provided with a first threaded hole, and the first threaded hole matches the first threaded rod (703).

5. The production process of a three-layer laminated nonwoven fabric with an EPE interlayer according to claim 1, characterized in that: The outer wall of the displacement frame (709) is provided with a second threaded hole, the second threaded hole matches the second threaded rod (708), the outer wall of the displacement frame (709) is provided with a ratchet, and one end of the positioning block (711) is engaged with the ratchet.

6. The production process of a three-layer laminated nonwoven fabric with an EPE interlayer according to claim 1, characterized in that: The bottom end of the positioning block (711) is provided with a first inclined surface, and the first inclined surface is in contact with the top end of the push rod (713).

7. The production process of a three-layer laminated nonwoven fabric with an EPE interlayer according to claim 3, characterized in that: The inner wall of the transverse groove (803) fits with the outer wall of the mounting block (801), the outer wall of the connecting plate (804) is provided with a connecting hole, and the inner wall of the connecting hole is provided with a ball bearing that matches the reciprocating screw rod (807).

8. The production process of a three-layer laminated nonwoven fabric with an EPE interlayer according to claim 3, characterized in that: The outer walls of the slider (808) and the tooth plate (811) are both provided with tooth grooves, the tooth grooves meshing with the spur gear (810), one end of the displacement seat (816) is provided with a second inclined surface, the outer wall of the extrusion block (818) is in contact with the second inclined surface, one end of the clamping block (814) is engaged with the ratchet (813), and the outer wall of the tooth block (819) is provided with ratchet teeth engaged with the ratchet (813).

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