A sewing device for processing down jackets

Abstract

The present invention relates to the technical field of fabric stitching devices, and particularly relates to a stitching device for processing down jackets, which includes a bracket, a sliding frame, an outer layer of fabric, an inner layer of fabric, and a clamping member. By providing hardened coatings at both ends of the inner layer of fabric in the second direction, when the ends of the inner layer of fabric in the second direction are stitched to the outer layer of fabric, the inner layer of fabric with the hardened coating abuts against the outer layer of fabric, reducing the probability of down spilling out through the needle holes. Additionally, multiple inner layers of fabric are provided between two outer layers of fabric, dividing the space between the two outer layers of fabric into multiple relatively isolated independent chambers, and enabling the stitching area to still be filled with down, reducing the heat loss rate in the stitching area, thereby improving the comfort of wearing the down jacket.

Description

Technical Field

[0001] The present invention relates to the technical field of fabric sewing devices, and particularly relates to a sewing device for processing down jackets. Background Art

[0002] In the modern textile and clothing field, down products always occupy an important position due to their excellent warmth retention performance. As a natural protein fiber, down has characteristics such as low density, high loftiness, and low thermal conductivity. The warmth retention of down per unit volume is 2.5 times that of wool and 3 times that of cotton. A down jacket achieves efficient heat preservation through the static air layer between down fibers. During the processing of existing down jackets, the fabric needs to be sewn. In traditional sewing processes, the micropores formed by the sewing needle piercing the fabric become channels for down to spill out. At the same time, the fibers are damaged due to repeated friction at the sewing thread trace, increasing the down leakage rate and resulting in down leakage in the down jacket. During the existing sewing process, to prevent the down from agglomerating, the fabric is generally divided into several independent areas, but this process causes no down filling in the sewing area, increasing the heat loss rate at the sewing area and affecting the wearing comfort. Summary of the Invention

[0003] The present invention provides a sewing device for processing down jackets to solve the problem of low comfort of down jackets sewn by existing down jacket sewing devices.

[0004] The following technical solutions are adopted for a sewing device for processing down jackets of the present invention:

[0005] A sewing device for processing down jackets includes a bracket, a sliding frame, an outer layer of fabric, an inner layer of fabric, and a clamping member.

[0006] A placement table is provided on the bracket, a guide rail is provided on the placement table, and the guide rail extends along a first direction; a sewing machine is provided on the placement table, the sewing machine has a needle and a bobbin, the needle reciprocates along a second direction, the second direction is perpendicular to and coplanar with the first direction, the bobbin is rotatably provided on the placement table, and the bobbin is coaxially arranged with the needle; the sliding frame is slidably arranged along the guide rail; there are two outer layers of fabric, and the two outer layers of fabric are arranged at intervals; the length of the inner layer of fabric in the first direction is equal to that of the outer layer of fabric, and the length of the inner layer of fabric in the second direction is greater than the distance between the two outer layers of fabric; hardening coatings are provided at both ends of the inner layer of fabric in the second direction; the clamping member is used to clamp the end of the inner layer of fabric in the second direction and the outer layer of fabric on the sliding frame.

[0007] Further, after the inner fabric is bent in the second direction, it fits against the outer fabric, and when the needle stitches the outer fabric and the inner fabric, it passes through one layer of the outer fabric and two layers of the inner fabric.

[0008] Further, after the inner fabric is bent in the second direction, it fits against the outer fabric, and the end of the inner fabric in the second direction is in a state of abutting against the outer fabric.

[0009] Further, two sewing machines are provided on the bracket, the two sewing machines are fixedly connected, the needles of the two sewing machines are coaxially arranged, and the two needles simultaneously stitch the two ends of the inner fabric in the second direction and the outer fabric.

[0010] Further, an adjustment groove is provided in the middle of the sliding frame in the second direction, the middle part of the inner fabric in the second direction can enter the adjustment groove, and an adjusting member is provided on the sliding frame, and the adjusting member can adjust the amount of the inner fabric entering the adjustment groove according to the required distance between the two outer fabrics.

[0011] Further, the adjusting member includes an adjusting plate and an adjusting screw. The adjusting groove extends in the first direction. The adjusting plate can be inserted into the adjusting groove. The length of the adjusting plate in the first direction is greater than the length of the inner fabric in the first direction; the adjusting screw is rotationally connected to the adjusting plate, and the adjusting screw is threadedly connected to the sliding frame.

[0012] Further, the clamping member includes a clamping plate and a fastening screw. The clamping plate extends in the first direction. The length of the clamping plate in the first direction is the same as that of the sliding frame. The fastening screw is used to fix the clamping plate on the sliding frame.

[0013] Further, a needle-passing groove is provided on the clamping plate, and the needle can stitch the outer fabric and the inner fabric through the needle-passing groove.

[0014] Further, the hardening coatings provided at both ends of the inner fabric in the second direction are anti-feather leakage coatings.

[0015] Further, the anti-feather leakage coating is made of high-density polyurethane material.

[0016] The beneficial effects of the present invention are as follows: A sewing device for down jacket processing according to the present invention includes a bracket, a sliding frame, an outer fabric, an inner fabric, and a clamping member. When sewing a down jacket, the sliding frame is moved to the end of the guide rail, and the needle is aligned with the end of the sliding frame. The clamping member is used to clamp the end of the inner fabric in the second direction and the outer fabric on the sliding frame. Then, the sewing machine is started, and the sewing machine drives the needle to reciprocate in the second direction. Subsequently, the sliding frame is pushed to move slowly on the guide rail, thereby realizing the sewing of the inner fabric and the outer fabric. By providing hardening coatings at both ends of the inner fabric in the second direction, when the end of the inner fabric in the second direction is sewn to the outer fabric, the inner fabric provided with the hardening coating abuts against the outer fabric, reducing the probability of down leaking out through the needle holes. In addition, multiple inner fabrics are provided between the two outer fabrics, dividing the space between the two outer fabrics into multiple relatively isolated independent chambers, and ensuring that there is still down filling in the sewing area, reducing the heat loss rate in the sewing area, and thus improving the comfort of wearing the down jacket. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 FIG. 1 is a schematic structural diagram of a sewing device for down jacket processing provided by an embodiment of the present invention;

[0019] Figure 2 FIG. Figure 1 is a partial enlarged view of part A in FIG. 1;

[0020] Figure 3 FIG. 2 is a side view of a sewing device for down jacket processing provided by an embodiment of the present invention;

[0021] Figure 4 FIG. Figure 3 is a partial enlarged view of part B in FIG. 2;

[0022] Figure 5 FIG. 3 is a partial cross-sectional view of a sewing device for down jacket processing provided by an embodiment of the present invention;

[0023] Figure 6 FIG. 4 is a state diagram of different bending modes of the inner fabric in a sewing device for down jacket processing provided by an embodiment of the present invention.

[0024] In the figure: 110, placement table; 130, guide rail; 140, sewing machine; 141, sewing needle; 142, bobbin; 150, sliding carriage; 160, outer fabric; 170, inner fabric; 210, adjusting plate; 220, adjusting screw; 230, clamping plate. Detailed implementation mode

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] The serial numbers assigned to the components in this article, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The "connection" and "coupling" mentioned in this application, unless otherwise specified, both include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0027] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0028] As Figures 1 to 6 shown, a sewing device for down jacket processing provided by an embodiment of the present invention includes a bracket, a sliding carriage 150, an outer fabric 160, an inner fabric 170 and a clamping member.

[0029] A storage table 110 is provided on the bracket. The bracket can be placed on the ground or an external device. The storage table 110 is always in a horizontal state. A guide rail 130 is fixedly provided on the storage table 110. The guide rail 130 extends in the first direction. In this embodiment, the first direction is the front-back direction. A sewing machine 140 is fixedly provided on the storage table 110. The sewing machine 140 has a needle 141 and a bobbin 142. The needle 141 on the sewing machine 140 can reciprocate in the second direction. In this embodiment, the second direction is the left-right direction. The second direction is coplanar with and perpendicular to the first direction. The bobbin 142 is coaxially arranged with the needle 141. The bobbin 142 is rotatably provided on the storage table 110. The bobbin 142 can be quickly detached from the storage table 110. A sewing thread is wound around the bobbin 142. The bobbin 142 can cooperate with the sewing thread on the needle 141 to realize the stitching of the fabric.

[0030] The sliding carriage 150 is slidably arranged along the guide rail 130. In the initial state, the sliding carriage 150 is at the end of the guide rail 130. And the needle 141 corresponds to one end of the sliding carriage 150. The staff can push the sliding carriage 150 to slide slowly on the guide rail 130.

[0031] The outer fabric 160 has a width direction and a length direction. The width direction of the outer fabric 160 is arranged as the front-back direction. The length direction of the outer fabric 160 is arranged as the up-down direction. There are two outer fabrics 160. The two outer fabrics 160 are arranged at intervals. The interval direction of the two outer fabrics 160 is the left-right direction. The interval distance between the two outer fabrics 160 is determined by the filling amount.

[0032] The inner layer fabric 170 has a width direction and a length direction. The width direction of the inner layer fabric 170 is arranged in the front-back direction, and the length direction of the inner layer fabric 170 is arranged in the left-right direction. The inner layer fabric 170 and the outer layer fabric 160 have the same length in the front-back direction. The length of the inner layer fabric 170 in the left-right direction is greater than the distance between the two outer layer fabrics 160. During the process of sewing the down jacket, the ends of the inner layer fabric 170 in the left-right direction are sewn to the outer layer fabric 160, and the sewing path is sewn along the front-back direction. By setting the length of the inner layer fabric 170 in the left-right direction, it is ensured that the inner layer fabric 170 will not affect the distance between the two outer layer fabrics 160 when the inner layer fabric 170 is sewn to the outer layer fabric 160. Further, hardening coatings are provided at both ends of the inner layer fabric 170 in the second direction. The hardening coatings are provided at the ends of the inner layer fabric 170 in the left-right direction. When the inner layer fabric 170 is sewn to the outer layer fabric 160, the positions of the inner layer fabric 170 provided with the hardening coatings are the sewing positions. The inner layer fabric 170 provided with the hardening coatings abuts against the outer layer fabric 160, reducing the probability of down leaking out through the needle holes. In addition, a plurality of inner layer fabrics 170 are provided between the two outer layer fabrics 160, separating the space between the two outer layer fabrics 160 into a plurality of relatively isolated independent chambers, and the sewing area between the inner layer fabric 170 and the outer layer fabric 160 still has down filling, reducing the heat loss rate of the sewing area.

[0033] The clamping member is used to clamp the ends of the inner layer fabric 170 in the second direction and the outer layer fabric 160 on the sliding frame 150. When sewing the inner layer fabric 170 and the outer layer fabric 160, the clamping member clamps the inner layer fabric 170 and the outer layer fabric 160, moves the sliding frame 150 to the end of the guide rail 130, and aligns the needle head 141 with the end of the sliding frame 150. Then, the sewing machine 140 is started. The sewing machine 140 drives the needle head 141 to reciprocate in the left-right direction. Subsequently, the worker slowly moves the sliding frame 150 on the guide rail 130, thereby realizing the sewing of the inner layer fabric 170 and the outer layer fabric 160.

[0034] A stitching device for processing down jackets according to the present invention, when processing and stitching a down jacket, moves the sliding frame 150 to the end of the guide rail 130, aligns the needle head 141 with the end of the sliding frame 150, uses a clamping member to clamp the end of the inner layer fabric 170 in the second direction and the outer layer fabric 160 on the sliding frame 150, then starts the sewing machine 140. The sewing machine 140 drives the needle head 141 to reciprocate in the second direction, and then pushes the sliding frame 150 to slowly move on the guide rail 130, thereby realizing the stitching of the inner layer fabric 170 and the outer layer fabric 160; by providing hardening coatings at both ends of the inner layer fabric 170 in the second direction, when the end of the inner layer fabric 170 in the second direction is stitched to the outer layer fabric 160, the inner layer fabric 170 provided with the hardening coating abuts against the outer layer fabric 160, reducing the probability of down overflowing outward through the needle holes. In addition, a plurality of inner layer fabrics 170 are provided between the two outer layer fabrics 160, separating the space between the two outer layer fabrics 160 into a plurality of relatively isolated independent chambers, and realizing that there is still down filling in the stitching area, reducing the heat loss rate in the stitching area, and thereby improving the comfort of wearing the down jacket.

[0035] In one embodiment, the inner layer fabric 170 is bent in the second direction and abuts against the outer layer fabric 160. When the needle head 141 stitches the outer layer fabric 160 and the inner layer fabric 170, it passes through one layer of the outer layer fabric 160 and two layers of the inner layer fabric 170. Specifically, when stitching the outer layer fabric 160 and the inner layer fabric 170, in order to reduce the probability of down overflowing outward through the needle holes, the ends of the inner layer fabric 170 in the left and right directions are folded. When the down escapes outward through the needle holes, the down needs to pass through the needle holes of three layers of fabrics, increasing the resistance of the down to escape outward, thereby reducing the probability of down overflowing outward through the needle holes.

[0036] In one embodiment, the inner layer fabric 170 is bent in the second direction and abuts against the outer layer fabric 160, and the end of the inner layer fabric 170 in the second direction is in a state of abutting against the outer layer fabric 160. Specifically, when stitching the inner layer fabric 170 and the outer layer fabric 160, since the ends of the inner layer fabric 170 in the left and right directions are provided with hardening coatings, the hardness of the inner layer fabric 170 coated with the hardening coating is higher than that of the outer layer fabric 160, and the hardness of the inner layer fabric 170 not coated with the hardening coating is the same as that of the outer layer fabric 160. When bending the ends of the inner layer fabric 170, it is ensured that the ends of the inner layer fabric 170 in the left and right directions directly abut against the outer layer fabric 160. Under the action of the hardness coating, the ends of the inner layer fabric 170 in the left and right directions closely abut against the outer layer fabric 160, reducing the probability of down passing through the gap between the inner layer fabric 170 and the outer layer fabric 160.

[0037] In one embodiment, the inner fabric 170 is bent in the second direction and fits against the outer fabric 160, and the end of the inner fabric 170 in the second direction is in a state of abutting against the inner fabric 170, as Figure 6 In the above state, after the inner fabric 170 is bent, the ends of the inner fabric 170 in the left - right direction are in a state of fitting against itself. At this time, when sewing the inner fabric 170 and the outer fabric 160, the needle 141 still passes through one layer of the outer fabric 160 and two layers of the inner fabric 170. In one embodiment, to improve the stability of the sewing machine 140 when sewing the inner fabric 170 and the outer fabric 160, two sewing machines 140 are provided on the bracket. The two sewing machines 140 are fixedly connected, the needles 141 of the two sewing machines 140 are spaced left - right, and moreover, the needles 141 of the two sewing machines 140 are in a coaxial state. When sewing the inner fabric 170 and the outer fabric 160, the two sewing machines 140 are started simultaneously, and the two needles 141 simultaneously sew the inner fabric 170 and the two outer fabrics 160. When the two sewing machines 140 are started, the vibrations of the two sewing machines 140 balance each other, so that the sewing of the inner fabric 170 and the outer fabric 160 is in a stable state.

[0038] In one embodiment, an adjustment groove is provided in the middle of the sliding frame 150 in the second direction. Specifically, the adjustment groove is set with an upward - opening, the length direction of the adjustment groove is set as the front - back direction, and the width direction of the adjustment groove is set as the left - right direction. By setting the width of the adjustment groove, it is ensured that the middle part of the inner fabric 170 in the left - right direction can enter the adjustment groove. Further, after the distance between the two outer fabrics 160 is fixed, if it is necessary to increase the filling amount, the length of the inner fabric 170 in the left - right direction is adjusted adaptively, and the length of the inner fabric 170 in the left - right direction is increased. To ensure that the inner fabric 170 and the outer fabric 160 are in a flat state during sewing, the middle part of the inner fabric 170 in the second direction is inserted into the adjustment groove, so as to ensure that the inner fabric 170 is in a straightened state. Further, an adjusting member is provided on the sliding frame 150, and the adjusting member can adjust the amount of the inner fabric 170 entering the inside of the adjustment groove according to the required distance between the two outer fabrics 160. By adjusting the amount of the inner fabric 170 entering the adjustment groove, it is ensured that the inner fabric 170 is in a straightened state during the sewing process of the inner fabric 170 and the outer fabric 160.

[0039] In one embodiment, the adjusting member includes an adjusting plate 210 and an adjusting screw 220. The adjusting slot has the same length as the inner fabric 170 in the front-back direction. The adjusting plate 210 can be inserted into the adjusting slot. The width of the adjusting slot in the left-right direction is greater than the thickness of the adjusting plate 210. When the adjusting plate 210 is inserted into the adjusting slot, the adjusting plate 210 can squeeze the middle part of the inner fabric 170 in the left-right direction into the adjusting slot. The length of the adjusting plate 210 in the front-back direction is greater than the length of the inner fabric 170 in the front-back direction. When the adjusting plate 210 is inserted into the adjusting slot, the front and rear ends of the adjusting plate 210 are outside the adjusting slot. The adjusting screw 220 is vertically arranged, the adjusting screw 220 is rotatably connected to the end of the adjusting plate 210, and the adjusting screw 220 is threadedly connected to the sliding frame 150. When the adjusting screw 220 rotates, the adjusting plate 210 can gradually be inserted into or pulled out of the adjusting slot, so as to adjust the amount of the inner fabric 170 entering the adjusting slot.

[0040] In one embodiment, the clamping member includes a clamping plate 230 and a fastening screw. The length direction of the clamping plate 230 is set as the front-back direction. The length of the clamping plate 230 in the front-back direction is equal to the length of the sliding frame 150 in the front-back direction. The fastening screw is used to fix the clamping plate 230 on the sliding frame 150. When sewing the inner fabric 170 and the outer fabric 160, the inner fabric 170 and the outer fabric 160 are clamped between the clamping plate 230 and the fixed frame, and are sewn in the clamped state of the outer fabric 160 and the inner fabric 170, reducing the gap between the inner fabric 170 and the outer fabric 160.

[0041] In one embodiment, there are two clamping plates 230. The two clamping plates 230 clamp two outer fabrics 160 and the inner fabric 170 at the same time, so as to cooperate with two sewing machines 140 to sew the two ends of the two outer fabrics 160 and the inner fabric 170 at the same time. Further, a needle-passing slot is provided on the clamping plate 230. The needle-passing slot penetrates through the two end faces of the clamping plate 230 in the left-right direction. When the clamping plate 230 is in the state of clamping the outer fabric 160 and the inner fabric 170, the needle head 141 sews the outer fabric 160 and the inner fabric 170 through the needle-passing slot.

[0042] In one embodiment, the hardening coatings provided at both ends of the inner fabric 170 in the second direction are anti-down-feathering coatings. The anti-down-feathering coatings reduce the fiber gaps by increasing the fabric density or forming a microporous barrier, thereby reducing the probability of down passing through the inner fabric 170. Further, the anti-down-feathering coating is made of high-density polyurethane material. In other embodiments, the anti-down-feathering coating is made of polyvinyl chloride material.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sewing device for processing down jackets, characterized in that, Including: A bracket, on which a placing table is arranged. On the placing table, a guide rail is arranged, and the guide rail extends along a first direction; two sewing machines are arranged on the placing table. The sewing machines have needles and shuttles. The needles reciprocate along a second direction, and the second direction is perpendicular to and coplanar with the first direction. The shuttles are rotatably arranged on the placing table, and the shuttles are coaxially arranged with the needles. Sewing threads are wound around the shuttles. Herein, the first direction is the front-back direction, and the second direction is the left-right direction; A sliding frame, which is slidably arranged along the guide rail; Two outer fabrics, which are arranged at intervals; An inner fabric, the length of the inner fabric in the first direction is equal to that of the outer fabrics, and the length of the inner fabric in the second direction is greater than the distance between the two outer fabrics; hardening coatings are arranged at both ends of the inner fabric in the second direction. When the inner fabric and the outer fabrics are sewn, the positions of the inner fabric provided with the hardening coatings are the sewing positions. The inner fabric provided with the hardening coatings abuts against the outer fabrics. A plurality of inner fabrics are arranged between the two outer fabrics, and the space between the two outer fabrics is divided into a plurality of relatively isolated independent chambers; The two sewing machines are fixedly connected, and the needles of the two sewing machines are coaxially arranged. The two needles simultaneously sew the two ends of the inner fabric in the second direction and the outer fabrics; A clamping member, which is used for clamping the end of the inner fabric in the second direction and the outer fabrics on the sliding frame.

2. The stitching device for processing down jackets according to claim 1, characterized in that: The inner fabric is bent in the second direction and fits against the outer fabric. When the needle sews the outer fabric and the inner fabric, it passes through one layer of the outer fabric and two layers of the inner fabric in total.

3. A stitching device for down jacket processing according to claim 1, characterized in that: The inner fabric is bent in the second direction and fits against the outer fabric, and the end of the inner fabric in the second direction is in a state of abutting against the outer fabric.

4. A stitching device for processing down jackets according to claim 1, characterized in that: An adjustment groove is arranged in the middle of the sliding frame in the second direction. The middle of the inner fabric in the second direction can enter the adjustment groove. An adjusting member is arranged on the sliding frame, and the adjusting member can adjust the amount of the inner fabric entering the adjustment groove according to the required distance between the two outer fabrics.

5. The stitching device for processing down jackets according to claim 4, characterized in that: The adjusting member includes an adjusting plate and an adjusting screw. The adjustment groove extends along the first direction. The adjusting plate can be inserted into the adjustment groove, and the length of the adjusting plate in the first direction is greater than the length of the inner fabric in the first direction; the adjusting screw is rotatably connected to the adjusting plate, and the adjusting screw is threadedly connected to the sliding frame.

6. The stitching device for down jacket processing according to claim 1, wherein: The clamping member includes a clamping plate and a fastening screw. The clamping plate extends along the first direction, and the length of the clamping plate in the first direction is the same as that of the sliding frame. The fastening screw is used for fixing the clamping plate on the sliding frame.

7. A sewing device for processing down jackets according to claim 6, characterized in that: A needle-passing groove is arranged on the clamping plate, and the needle can pass through the needle-passing groove to sew the outer fabric and the inner fabric.

8. A sewing device for processing down jackets according to claim 1, characterized in that: The hardening coatings arranged at both ends of the inner fabric in the second direction are anti-feather leakage coatings.

9. A stitching device for down jacket processing according to claim 8, characterized in that: The anti-down-feather coating is made of high-density polyurethane material.

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