Manufacturing device and method of a composite thermal light weight fabric

Abstract

The application relates to a manufacturing device and method of composite warm lightweight fabric, and relates to the technical field of composite fabric preparation.The structure of the warm lightweight fabric comprises two single fabrics and a warm fiber film compounded between the two single fabrics.The structure of the manufacturing device comprises a mounting frame, single fabric feeding counter-rollers, bearing counter-rollers, a hot-pressing composite machine group and composite fabric winding counter-rollers arranged on the mounting frame in sequence, and further comprises a perforating machine group and a hot-melt adhesive discharging machine group.The perforating machine group is provided with two perforating units arranged oppositely, and an electrically-driven coating roller is arranged between the two perforating units.The driving end of the electrically-driven coating roller is provided with a transmission mechanism for performing intermittent perforating treatment of the two perforating units.The manufacturing device can further optimize the process flow, improve the work efficiency, improve the combination effect of the single fabric and the warm fiber film, and improve the strength of the composite fabric.

Description

Technical Field

[0001] This invention belongs to the field of composite fabric preparation technology, specifically relating to a manufacturing apparatus and method for a composite thermal and lightweight fabric. Background Technology

[0002] The most basic requirement for fabrics to have thermal insulation properties is to improve the thermal insulation properties of fabrics. There are many ways to improve the thermal insulation properties of fabrics. For example, Chinese authorized patent CN112921478B discloses that improving the weaving process of fabrics can improve their thermal insulation properties. Another example is Chinese authorized patent CN114717705B, which discloses that by developing down-filled thermal insulation fibers and using them to prepare fabrics, the thermal insulation properties of down-filled thermal insulation fibers are improved compared with ordinary fibers, thereby enhancing the thermal insulation properties of the fabric. Finally, Chinese patent CN110328904A discloses that the thermal insulation properties of fabrics can also be improved by combining a thermal insulation film with the fabric. In the prior art, the film material can be a fiber film prepared by melt spinning by incorporating ceramic powder or metal oxide powder into a resin material.

[0003] Among these, thermal insulation fabrics prepared using the lamination process are lighter than those prepared using the other two methods, thus possessing significant development potential. Regarding the composite of fiber membranes and fabrics, currently commonly used hot-press lamination equipment laminates a fiber membrane coated with hot melt adhesive onto a single or two layers of fabric before hot pressing. Improving the structure of the manufacturing equipment to enhance the tightness of the composite structure between the fabric base and the fiber membrane is a key way to improve the durability of composite thermal insulation fabrics. Summary of the Invention

[0004] The purpose of this invention is to provide an apparatus and method for manufacturing composite thermal and lightweight fabrics in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] As a first aspect of the present invention, an apparatus for manufacturing a composite thermal lightweight fabric is provided. The structure of the thermal lightweight fabric includes two single fabric pieces and a thermal fiber film laminated between the two single fabric pieces. The structure of the apparatus for manufacturing the composite thermal lightweight fabric includes an installation frame and a single fabric feeding roller, a receiving roller, a hot pressing laminating unit, and a composite fabric winding roller arranged sequentially on the installation frame. It also includes a perforating unit and a hot melt adhesive feeding unit.

[0007] The perforation unit has two perforation units arranged opposite to each other, and an electrically driven coating roller is provided between the two perforation units. The hot melt adhesive feeding unit is located directly above the electrically driven coating roller. The electrically driven coating roller is used to transfer the thermal insulation fiber film while coating the hot melt adhesive fed by the hot melt adhesive feeding unit onto the thermal insulation fiber film. The drive end of the electrically driven coating roller is provided with a transmission mechanism for two perforation units to perform intermittent perforation processing.

[0008] As a further optimization of the present invention, the piercing unit includes a frame and a spring seat on the frame for connecting the piercing units. Two piercing units are symmetrically arranged at the upper and lower ends of the frame. Each piercing unit includes a horizontal plate movably arranged on the frame, a connecting column at the lower end of the horizontal plate, and a cylinder on the connecting column. The lower end of the cylinder is provided with a plurality of piercing needles arranged in a matrix.

[0009] As a further optimization of the present invention, the transmission mechanism includes a linkage rod at both ends of the piercing unit and a cam component at the drive end of the electrically driven coating roller corresponding to the position of the linkage rod. A connecting rod is hinged to the outer side of the linkage rod, and the end of the connecting rod that is not hinged to the linkage rod is hinged to the mounting frame.

[0010] As a further optimization of the present invention, the middle part of the single-piece fabric feeding roller is provided with an ironing mechanism for ironing the thermal insulation fiber film. The ironing mechanism includes two supports arranged opposite to each other, and ironing plates are provided at the ends of the two supports that are close to each other. The thermal insulation fiber film passes through the two ironing plates. The supports are provided with a heating control unit for controlling the heating of the ironing plates.

[0011] As a further optimization of the present invention, a limiting frame is provided on the mounting frame between the receiving roller and the hot pressing composite unit. The limiting frame has a flared opening on its transverse central axis for the thermal insulation fiber film to pass through, and the limiting frame has symmetrical limiting ports for the single piece of fabric to pass through on both sides of the flared opening.

[0012] As a further optimization of the present invention, the unit roller body receiving the roller is a hollow roller body, and each end of the hollow roller body near the single piece of fabric is provided with an opening and a napping block is provided at the opening. The hollow roller body is provided with a slide block connected to the napping block inside, and the inner side wall of the hollow roller body is provided with a guide rail that slides with the slide block. The hollow roller body is provided with a drive mechanism for driving the napping block to swing inside, and the drive mechanism is connected to the drive end of the electrically driven coating roller.

[0013] As a further optimization of the present invention, the driving mechanism includes a pulley assembly, the active end of which is connected to the driving end of the electrically driven coating roller, and the driven end of which is connected to a drive shaft. The drive shaft is provided with a turntable, and the turntable is provided with a protrusion. A rocker arm is hinged to the side of the hollow roller body facing the napping block, and the end of the rocker arm that is not hinged to the hollow roller body is hinged to a hinge frame connected to a slide block. A limiting groove is opened on the outside of the rocker arm, and the protrusion passes through the limiting groove.

[0014] As a second aspect of the present invention, a method for manufacturing composite thermal insulation lightweight fabric using the apparatus described above is also provided, comprising the following steps:

[0015] Step 1: Using single-sheet fabric feeding rollers to transport two single-sheet fabrics, while simultaneously using electrically driven coating rollers to transport the insulation fiber film;

[0016] Step 2: While the hot melt adhesive fed by the hot melt adhesive feeding unit is applied to the thermal insulation fiber film by the electric drive coating roller, the drive end of the electric drive coating roller drives the transmission mechanism to drive two punching units to perform gap punching treatment on the two single pieces of fabric conveyed to the punching unit.

[0017] Step 3: The two single pieces of fabric after the perforation treatment are conveyed to the hot press laminating unit by receiving rollers. At the same time, the thermal insulation fiber film coated with hot melt adhesive is conveyed to the hot press laminating unit by electrically driven coating rollers. The thermal press laminating unit is used to hot press the thermal insulation fiber film onto the two single pieces of fabric to obtain a composite thermal insulation lightweight fabric.

[0018] Step 4: After the obtained composite thermal lightweight fabric is wound up by the composite fabric winding roller, it is unloaded.

[0019] The beneficial effects of this invention are as follows:

[0020] (1) The present invention is equipped with a transmission mechanism that drives two punching units to perform intermittent punching on two single fabrics while the electric-driven coating roller is operating. This can relatively increase the punching density on the composite fabric. While ensuring the tightness of the composite structure of the single fabric and the thermal insulation fiber film, the amount of punching on the single fabric is relatively reduced. This can relatively reduce the problem of the decrease in fabric strength caused by punching on the single fabric, thereby ensuring the overall strength performance of the composite fabric.

[0021] (2) The present invention sets up a napping block in the receiving roller, so that the napping block is driven by the drive mechanism to swing and achieve napping treatment of single fabrics in the synchronous operation of the electrically driven coating roller. The process flow is further optimized and the work efficiency is improved. Moreover, the napping of single fabrics by the napping block can increase its bonding with the fiber membrane to a certain extent, thereby improving the strength of the composite fabric. Attached Figure Description

[0022] Figure 1 A cross-sectional structural schematic diagram of the manufacturing apparatus provided by the present invention;

[0023] Figure 2 This is a schematic diagram of the perforation unit provided by the present invention;

[0024] Figure 3 Provided by the present invention Figure 2 Enlarged view of the structure of section A in the middle;

[0025] Figure 4 A three-dimensional structural diagram of the linkage provided by the present invention;

[0026] Figure 5 This is a cross-sectional view of the internal structure of the receiving rollers provided by the present invention;

[0027] In the diagram: 1. Mounting frame; 2. Single-piece fabric feeding rollers; 3. Receiving rollers; 4. Hot-pressing composite unit; 5. Composite fabric winding rollers; 6. Ironing mechanism; 61. Support; 62. Ironing board; 63. Heating control unit; 7. Limiting frame; 8. Punching unit; 81. Frame; 82. Punching unit; 821. Cylinder; 822. Connecting column; 823. Horizontal plate; 824. Punching needle; 83. Spring seat; 84. Linkage rod; 85. Cam component; 86. Connecting rod; 9. Coating roller; 10. Hot melt adhesive feeding unit; 11. Pulley assembly; 12. Lining block; 13. Drive shaft; 14. Turntable; 15. Protrusion; 16. Swing rod; 17. Hinge frame; 18. Slide seat; 19. Guide rail. Detailed Implementation

[0028] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0029] Example 1

[0030] like Figure 1As shown, this embodiment provides a manufacturing apparatus for a composite thermal lightweight fabric. The structure of the thermal lightweight fabric includes two single fabric pieces and a thermal fiber membrane composited between the two single fabric pieces. The single fabric pieces are woven from fibers such as cotton, nylon, and polyester, which are commonly used in the art, as warp and weft threads to obtain the fabric. The thermal fiber membrane is obtained by melt spinning using resin chips, ceramic powder or metal oxide powder, and processing aids as the main raw materials (the raw material composition ratio and preparation process parameters involved in melt spinning are technical contents well known to those skilled in the art, and this invention does not make any technical improvements in this regard, so no limitations are made). The thermal fiber membrane has the functions of heat absorption, heat storage, and heat preservation due to the incorporation of ceramic powder or metal oxide. Composite with it in the fabric can further improve the warmth of the fabric. In addition, the lightweight thermal fiber membrane can reduce the weight of the fabric, making the fabric lighter.

[0031] This embodiment further designs the specific structure of the manufacturing device for the composite thermal insulation lightweight fabric, specifically, as follows: Figure 1 As shown, the structure of the manufacturing apparatus includes a mounting frame 1 and a single-piece fabric feeding roller 2, a receiving roller 3, a hot pressing composite unit 4, and a composite fabric winding roller 5 arranged sequentially on the mounting frame 1. It also includes a punching unit 8 and a hot melt adhesive feeding unit 10.

[0032] The perforating unit 8 has two perforating units 82 arranged opposite to each other, and an electrically driven coating roller 9 is provided between the two perforating units 82. The hot melt adhesive feeding unit 10 is located directly above the electrically driven coating roller 9. The electrically driven coating roller 9 is used to transfer the thermal insulation fiber film and apply the hot melt adhesive fed by the hot melt adhesive feeding unit 10 onto the thermal insulation fiber film. The drive end of the electrically driven coating roller 9 is provided with a transmission mechanism for the two perforating units 82 to perform intermittent perforation processing.

[0033] In application, two single-piece fabrics are fed by a single-piece fabric feeding roller 2 while an electrically driven coating roller 9 feeds the insulation fiber film. Subsequently, the electrically driven coating roller 9 applies the hot melt adhesive fed by the hot melt adhesive feeding unit 10 onto the insulation fiber film. At the same time, the drive end of the electrically driven coating roller 9 drives the transmission mechanism to drive two punching units 82 to perform gap punching on the two single-piece fabrics fed to the punching unit 8. Then, the two single-piece fabrics after punching are fed to the hot press laminating unit 4 via the receiving roller 3. At the same time, the insulation fiber film coated with hot melt adhesive is fed to the hot press laminating unit 4 via the electrically driven coating roller 9. The hot press laminating unit 4 heat-presses the insulation fiber film onto the two single-piece fabrics to obtain a composite insulation lightweight fabric. Finally, the obtained composite insulation lightweight fabric is wound up by the composite fabric winding roller 5 and then unloaded.

[0034] Furthermore, the following structural design enables two piercing units 82 to perform intermittent piercing treatment on two single pieces of fabric. Specifically, the piercing unit 8 includes a frame 81 and a spring seat 83 on the frame 81 for connecting the piercing units 82. The two piercing units 82 are symmetrically arranged at the upper and lower ends of the frame 81. The piercing unit 82 includes a horizontal plate 823 movably arranged on the frame 81, a connecting column 822 at the lower end of the horizontal plate 823, and a cylinder 821 on the connecting column 822. The lower end of the cylinder 821 is provided with a plurality of piercing needles 824 arranged in a matrix.

[0035] The transmission mechanism includes a linkage rod 84 located at both ends of the piercing unit 82 and a cam member 85 located at the drive end of the electrically driven coating roller 9, corresponding to the position of the linkage rod 84. A connecting rod 86 is hinged to the outer side of the linkage rod 84, and the end of the connecting rod 86 that is not hinged to the linkage rod 84 is hinged to the mounting frame 1.

[0036] In application, the two perforation units 82 are located at the upper and lower ends, corresponding to the positions of the two unit rollers of the single-piece fabric feeding roller 2. For ease of understanding, the two perforation units 82 are referred to as the upper perforation unit and the lower perforation unit. When the electrically driven coating roller 9 is working, it drives the cam 85 to rotate. When the convex end of the cam 85 rotates towards the upper perforation unit, the linkage rod 84 connected to the upper perforation unit on its outer surface is pushed upward by the cam 85, thereby pushing the entire upper perforation unit upward to compress the spring seat 83. The needles 82 of the upper perforation unit... 4. After leaving the upper fabric, the linkage rod 84 connected to the lower punching unit disengages from the cam 85. Under the reset action of the spring seat 83, the needle 824 of the lower punching unit inserts into the lower single piece of fabric, completing the punching process of the lower fabric. Similarly, when the convex end of the cam 85 rotates toward the lower punching unit, the upper fabric is needle-punched, while the lower fabric disengages from the needle 824. In order to ensure the smooth transport of the fabric, the rotation speed of the electrically driven coating roller 9 must be relatively greater than the rotation speed of the single-piece fabric feeding roller 2.

[0037] The above structural design enables two perforation units 82 to perform intermittent perforation treatment on two single fabric pieces, which can relatively increase the perforation density on the composite fabric. While ensuring the tightness of the composite structure between the single fabric piece and the thermal insulation fiber membrane, the number of perforations on the single fabric piece can be relatively reduced, thereby relatively reducing the problem of fabric strength reduction caused by perforation on the single fabric piece, and thus ensuring the overall strength performance of the composite fabric.

[0038] Furthermore, to improve the flatness of the thermal insulation fiber film before hot-pressing lamination, this embodiment provides an ironing mechanism 6 in the middle of the single-piece fabric feeding rollers 2 for ironing the thermal insulation fiber film, such as... Figure 1As shown, the ironing mechanism 6 includes two supports 61 arranged opposite to each other. Each of the two supports 61 has an ironing plate 62 at its close end. The insulating fiber film passes between the two ironing plates 62. The supports 61 are equipped with a heating control unit 63 to control the heating of the ironing plates 62. In use, the heating control unit 63 sets the working temperature of the ironing plates 62 so that the insulating fiber film passes between the two ironing plates 62 and is ironed at the same time.

[0039] Furthermore, to ensure that the two single-piece fabrics and the thermal insulation fiber film remain in a fixed relative position before entering the hot-pressing composite unit 4, such as... Figure 1 As shown, a limiting frame 7 is provided on the mounting frame 1 between the receiving roller 3 and the hot press composite unit 4. The limiting frame 7 has a flared opening on its transverse central axis for the thermal insulation fiber film to pass through. At the same time, the flared opening can be used to smooth the hot melt adhesive coated on the thermal insulation fiber film to ensure the uniformity of the hot melt adhesive on the film. In addition, the limiting frame 7 has symmetrical limiting holes on both sides of the flared opening for the passing through of single pieces of fabric, which are used to limit the single pieces of fabric.

[0040] Furthermore, in order to improve the structural bonding tightness when the single-piece fabric is laminated with the thermal insulation fiber membrane, such as... Figure 5 The unit roller body receiving the roller 3 is a hollow roller body, and each end of the hollow roller body near the single piece of fabric has an opening and a napping block 12 is provided at the opening. The hollow roller body has a slide seat 18 connected to the napping block 12 inside, and a guide rail 19 that slides with the slide seat 18 is provided on the inner side wall of the hollow roller body. The hollow roller body has a drive mechanism that drives the napping block 12 to swing inside, and the drive mechanism is connected to the drive end of the electrically driven coating roller 9.

[0041] The drive mechanism includes a pulley assembly 11, the active end of which is connected to the drive end of the electrically driven coating roller 9, and the driven end of the pulley assembly 11 is connected to a drive shaft 13. A turntable 14 is provided on the drive shaft 13, and a protrusion 15 is provided on the turntable 14. A rocker arm 16 is hinged to the side of the hollow roller body facing the napping block 12, and the end of the rocker arm 16 that is not hinged to the hollow roller body is hinged to a hinge frame 17 connected to the slide block 18. A limiting groove is opened on the outside of the rocker arm 16, and the protrusion 15 passes through the limiting groove.

[0042] In application, when a single piece of fabric is conveyed to the receiving roller 3 by the single piece of fabric feeding roller 2, the raising block 12 is driven by the drive mechanism to swing to achieve the raising treatment of the single piece of fabric. Specifically, when the electrically driven coating roller 9 is working, it drives the drive shaft 13 to rotate through the pulley group 11. After the drive shaft 13 rotates, the turntable 14 on it rotates in a circle. The protrusion 15 on the turntable 14 pushes the swing arm 16 to swing back and forth, so that the swing arm 16 slides relative to the guide rail 19 through the sliding seat 18 connected by the hinge frame 17, and drives the raising block 12 to swing back and forth to achieve the raising treatment of the side of the single piece of fabric close to the hollow roller body. The distance of the left and right swing of the raising block 12 depends on the distance of the protrusion 15 on the turntable 14 from the center of the turntable 14. The raising of the single piece of fabric by the raising block 12 can increase its bonding with the fiber membrane to a certain extent, thereby increasing the strength of the composite fabric.

[0043] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A manufacturing apparatus for a composite thermal lightweight fabric, wherein the structure of the thermal lightweight fabric comprises two single fabric pieces and a thermal fiber membrane laminated between the two single fabric pieces, and the structure of the manufacturing apparatus comprises a mounting frame (1) and single fabric feeding rollers (2), receiving rollers (3), a hot pressing composite unit (4), and composite fabric winding rollers (5) arranged sequentially on the mounting frame (1), characterized in that: It also includes a piercing machine (8) and a hot melt adhesive feeding machine (10); The perforation unit (8) has two perforation units (82) arranged opposite to each other. An electrically driven coating roller (9) is provided between the two perforation units (82). The hot melt adhesive feeding unit (10) is located directly above the electrically driven coating roller (9). The electrically driven coating roller (9) is used to transfer the thermal insulation fiber film while coating the hot melt adhesive fed by the hot melt adhesive feeding unit (10) onto the thermal insulation fiber film. The drive end of the electrically driven coating roller (9) is provided with a transmission mechanism for two perforation units (82) to perform intermittent perforation processing. The piercing unit (8) includes a frame (81) and a spring seat (83) on the frame (81) for connecting the piercing unit (82). The two piercing units (82) are symmetrically arranged at the upper and lower ends of the frame (81). The piercing unit (82) includes a horizontal plate (823) movably arranged on the frame (81), a connecting column (822) at the lower end of the horizontal plate (823), and a cylinder (821) on the connecting column (822). The lower end of the cylinder (821) is provided with a plurality of piercing needles (824) arranged in a matrix. The transmission mechanism includes a linkage rod (84) at both ends of the piercing unit (82) and a cam (85) at the drive end of the electric drive coating roller (9) corresponding to the position of the linkage rod (84). A connecting rod (86) is hinged to the outside of the linkage rod (84), and the end of the connecting rod (86) that is not hinged to the linkage rod (84) is hinged to the mounting frame (1). The unit roller body receiving the roller (3) is a hollow roller body, and the end of the hollow roller body near the single piece of fabric is provided with an opening and a napping block (12) is provided at the opening. The hollow roller body is provided with a slide block (18) connected to the napping block (12), and the inner side wall of the hollow roller body is provided with a guide rail (19) that slides with the slide block (18). The hollow roller body is provided with a drive mechanism that drives the napping block (12) to swing, and the drive mechanism is connected to the drive end of the electrically driven coating roller (9).

2. A device for manufacturing a composite thermal light weight fabric as claimed in claim 1, wherein: The single fabric feeding roller (2) is provided with an ironing mechanism (6) for ironing the thermal insulation fiber film in the middle. The ironing mechanism (6) includes two supports (61) arranged opposite to each other. The ends of the two supports (61) that are close to each other are provided with ironing plates (62). The thermal insulation fiber film passes through the two ironing plates (62). The supports (61) are provided with a heating control unit (63) for controlling the heating of the ironing plates (62).

3. The apparatus for manufacturing a composite thermal lightweight fabric according to claim 1, characterized in that: The mounting frame (1) is provided with a limiting frame (7) between the receiving roller (3) and the hot press composite unit (4). The limiting frame (7) has a horn-shaped opening on its transverse central axis for the passage of the thermal insulation fiber film, and the limiting frame (7) has symmetrical limiting ports for single pieces of fabric to pass through on both sides of the horn-shaped opening.

4. The apparatus according to claim 1, wherein the first and second fabrics are made of a material selected from the group consisting of cotton, wool, silk, and synthetic fibers. The drive mechanism includes a pulley assembly (11), the active end of which is connected to the drive end of an electrically driven coating roller (9), and the driven end of the pulley assembly (11) is connected to a drive shaft (13). A turntable (14) is provided on the drive shaft (13), and a protrusion (15) is provided on the turntable (14). A rocker arm (16) is hinged to the side of the hollow roller body facing the napping block (12), and a hinge frame (17) connected to the slide block (18) is hinged to the end of the rocker arm (16) that is not hinged to the hollow roller body. A limiting groove is opened on the outside of the rocker arm (16), and the protrusion (15) passes through the limiting groove.

5. A method of manufacturing a composite thermal light weight fabric using the apparatus as claimed in any one of claims 1 to 4, wherein, Includes the following steps: Step 1: Using the single-sheet fabric feeding roller (2) to transport two single-sheet fabrics, while using the electrically driven coating roller (9) to transport the heat-insulating fiber film; Step 2: Using the electric-driven coating roller (9) to coat the hot melt adhesive fed by the hot melt adhesive feeding unit (10) onto the thermal insulation fiber film, the drive end of the electric-driven coating roller (9) drives the transmission mechanism to drive the two punching units (82) to perform gap punching on the two single pieces of fabric conveyed to the punching unit (8). Step 3: The two single fabric pieces after the perforation treatment are conveyed to the hot press composite unit (4) by the receiving roller (3). At the same time, the thermal insulation fiber film coated with hot melt adhesive is conveyed to the hot press composite unit (4) by the electrically driven coating roller (9). The thermal insulation fiber film is hot-pressed and laminated to the two single fabric pieces by the hot press composite unit (4) to obtain a composite thermal insulation lightweight fabric. Step 4: After the obtained composite thermal lightweight fabric is wound up by the composite fabric winding roller (5), it is unloaded.

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