CN115354452B - Double-side downward hemming folding device of automatic sewing machine - Google Patents
Double-side downward hemming folding device of automatic sewing machine Download PDFInfo
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- CN115354452B CN115354452B CN202210944363.5A CN202210944363A CN115354452B CN 115354452 B CN115354452 B CN 115354452B CN 202210944363 A CN202210944363 A CN 202210944363A CN 115354452 B CN115354452 B CN 115354452B
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- plate
- hemming
- folding
- guide
- cloth
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B35/00—Work-feeding or -handling elements not otherwise provided for
- D05B35/02—Work-feeding or -handling elements not otherwise provided for for facilitating seaming; Hem-turning elements; Hemmers
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a bilateral downward hemming folding device of an automatic sewing machine, which comprises a hemming mechanism transversely arranged at a cloth leading-in end and a hemming mechanism positioned behind the hemming mechanism and on a left and right hemming sewing platform, wherein the hemming mechanism comprises a support pipe arranged on the leading-in cross beam and hemming devices at two ends of the support pipe; the two-fold mechanism comprises a mounting plate, a guide bar, an inner inserting plate and a lower bracket. The invention realizes that the front surface of the cloth is upward, the 45-degree angle folding is finished twice through the folding mechanism, the burr part is folded downwards, the folded edge part is folded inwards through the folding mechanism, the whole cloth reverse surface lower hemming structure is formed, the bilateral downward hemming folding is realized, the exposure of the front surface line after sewing is less, and the attractive appearance quality is high; in the production, if the cloth defects appear, the cloth defects can be timely found when the cloth is upward in front.
Description
Technical Field
The invention relates to the field of automatic sewing machine equipment, in particular to a bilateral downward hemming and folding device of an automatic sewing machine.
Background
The fabric edge parts such as carpets, cloth, towels and the like are conventionally folded towards the back side of cloth, and the two types of upward hemming and downward hemming sewing are adopted, the difference of the line systems sewn by the upward and downward hemming is larger, as shown in figure 16, wherein the figure a is the line system of the front side of the upward hemming cloth, the figure b is the line system of the front side of the downward hemming cloth, the line system of the downward hemming sewing has less exposure, is obvious and attractive, the requirements on the quality standard of products such as high-grade carpets and the like are high, the downward hemming sewing is generally required, the existing equipment is difficult to realize, and the quality of the products is not stable, so that manual longitudinal seams are adopted mostly, the labor intensity is high, and the production efficiency is low. Meanwhile, upward hemming sewing is adopted in production, and hemming is carried out on the back surface of the cloth, so that the cloth is turned upwards in the hemming sewing process, and if the cloth is defective and unqualified, the cloth is always invisible on the back surface of the cloth. The hemming is performed in two steps, the hemming is performed firstly, then the hemming is performed by two folds, burrs are wrapped inside the hemming, the cloth is smoothly moved by the design, and a stable hemming mechanism is matched with automatic production to replace manual hemming longitudinal seams.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the double-side downward hemming folding device of the automatic sewing machine, which solves the problems, wherein the front surface of the cloth is upward, the cloth is firstly folded downward by a folding mechanism, and then the folded edge is folded inward to form the whole cloth reverse downward hemming, the cloth cover is flattened, the double sides follow the edge to align the hemming, the processing precision is high, and the quality of the automatically produced product is stable.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the double-side downward hemming folding device of the automatic sewing machine comprises a hemming mechanism transversely arranged at the leading-in end of the cloth and a hemming mechanism positioned at the rear of the hemming mechanism and on the hemming sewing platform at the left side and the right side,
the folding mechanism comprises a support pipe arranged on a guide-in cross beam and a hemming device at two ends of the support pipe, a linear guide rail is arranged on the guide-in cross beam, the support pipe is fixedly arranged on the middle section of the linear guide rail, a hemming device is movably arranged on two ends of the linear guide rail through a sliding block, the hemming device comprises a first folding angle plate and a second folding angle plate, a guide-in side vertical plate at the outer end of the first folding angle plate inclines 45 degrees from the top edge to the bottom edge in the direction far away from the support pipe to form a first triangle area, a guide-out side vertical plate at the two inner ends of the folding angle plate inclines 45 degrees from the top edge to the bottom edge in the direction of the support pipe to form a second triangle area, the guide-in side vertical plate is positioned on the inner side of the first triangle area of the first folding angle plate, a guide-out side vertical plate is positioned on the inner side of the second triangle area of the second folding angle plate, and a gap between the first folding angle plate and the second folding angle plate forms a Z-shaped path hemming gap of the hemming device; the end section of the first triangular plate is rectangular, the second triangular plate comprises a leading-in angle baffle with an L-shaped top surface and a leading-out angle plugboard with a T-shaped top surface, the leading-in angle baffle is installed at the inner side of a triangular plate area I of the first triangular plate in a clearance way, and the outer end face of a leading-out side vertical plate of the first triangular plate is positioned at the joint of a transverse vertical plate and a longitudinal vertical plate of the leading-out angle plugboard; the lower end of the driving plate is connected with a movable connecting plate, the movable connecting plate is connected to an adjusting plate provided with an adjusting hole, the adjusting plate is fixed on an adjusting seat, and the adjusting seat is connected with a hemming sewing platform;
the two-fold mechanism comprises a mounting plate, guide bars, an inner inserting plate and a lower bracket, wherein the L-shaped guide bars comprise front end guide plates and strip folded plates extending from the outer sides of the guide plates to the rear ends, the end faces of the mounting plate are 7-shaped, the inner side parts of the guide plates are fixed on transverse top plates of the mounting plate, a space is reserved between the strip folded plates of the guide bars and the mounting plate, the inner inserting plate is located at the space, the front ends of the inner inserting plate incline downwards to extend into the lower sides of the guide plates to form a folded edge guide inlet, the outer side edges of the rear parts incline towards the direction of the strip folded plates and are pressed above the strip folded plates, the tail ends of the inner side guide bars form folded edge guide outlets, and the end faces of the L-shaped lower bracket lean against the outer side edges and the lower sides of the guide bars.
According to the further improved technical scheme, the upper surface of the supporting tube is higher than the upper surface of a hemmer.
According to the technical scheme of the invention, a reverse L-shaped lining limiting plate is downwards connected with a leading-in side folding plate of the hemmer.
According to a further improved technical scheme, a guide roll shaft is arranged behind the guide-in cross beam.
According to a further improved technical scheme, the width of the strip folded plate of the guide strip is widened from the front end to the rear end.
According to the technical scheme of the invention, the front end of the bottom plate of the lower bracket is obliquely provided with a resistance plate inwards and downwards.
According to the technical scheme, an L-shaped connecting piece is arranged on the inner side of a vertical plate of the mounting plate, the vertical plate is fixed with a vertical plate of the connecting piece through bolts, and a bottom transverse plate of the connecting piece is fixed on a sliding block of a hand wheel screw rod sliding table.
According to the technical scheme of the invention, the front end corner of the outer side part of the guide plate of the guide bar is an arc corner.
The invention has the beneficial effects that:
the device realizes that the front surface of the cloth is upwards and the two sides are downwards curled and folded, the front surface line system after sewing is less exposed, and the device is obvious in attractive appearance and high in quality; in the production, if the cloth defects appear, the cloth defects can be timely found when the cloth is upward in front. The two 45-degree folding angles are finished through a folding mechanism, the downward hemming process is realized, the cloth lower hemming structure is shown in fig. 14, and the lower hemming edge is turned inwards through the folding mechanism, so that the whole cloth reverse side lower hemming structure is formed, and the cloth reverse side lower hemming structure is shown in fig. 15.
The middle supporting tube of the folding mechanism is fixed, and the two-end hemmers move along with the edge of the cloth, so that the bilateral angle plates are aligned with the edge of the cloth in real time; the high and low sides in the mechanism are beneficial to flattening of the blanket, and the influence of one end movement on the cloth position of the other end is eliminated.
The strip folded plate with unequal widths of the guide strips of the two folding mechanisms is widened from narrow, so that cloth is wound on the strip folded plate to be gradually unfolded, the final hemming width is ensured, meanwhile, a sufficient space is reserved for upward guiding of the edge of the cloth at the narrow position, the guiding is smoother, and the automatic cloth winding effect is realized; the resistance plate of the lower bracket assists the edge of the cloth to flow towards the winding direction, so that the cloth is smoothly and automatically wound.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic perspective view of a folding mechanism;
FIG. 3 is an enlarged schematic perspective view of an end of a folding mechanism;
FIG. 4 is a schematic diagram of a hemmer forming a Z-path hemming gap;
FIG. 5 is a schematic view of an end portion of a folding mechanism;
FIG. 6 is a schematic top view of a folding mechanism;
FIG. 7 is a schematic diagram of a front view of a folding mechanism;
FIG. 8 is a schematic view in section A-A of FIG. 7;
FIG. 9 is a schematic view in section B-B of FIG. 7;
FIG. 10 is a schematic perspective view of a two-fold mechanism;
fig. 11 is a schematic diagram showing the front view of the two-fold mechanism;
fig. 12 is a schematic top view of the two-fold mechanism;
fig. 13 is a schematic diagram of a left-view structure of the two-fold mechanism;
FIG. 14 is a schematic view of a fabric hemming structure of a lower hem after being folded;
fig. 15 is a schematic view of a cloth hemming structure of a two-fold downward hemming;
fig. 16 is a comparative graph of the line system sewn up and down hemmed front of the cloth, wherein a is the line system of the front of the cloth hemmed up and b is the line system of the front of the cloth hemmed down.
Description of the embodiments
As shown in fig. 1, the invention comprises a folding mechanism 1 transversely arranged at the cloth leading-in end and a folding mechanism 2 positioned behind the folding mechanism and on the left and right hemming sewing platform,
as shown in fig. 2 to 9, the folding mechanism comprises a support pipe 12 arranged on a guide-in cross beam 11 and a folding edge device 13 at two ends of the support pipe, a guide roll shaft 113 is arranged behind the guide-in cross beam 11, a linear guide rail 14 is arranged on the guide-in cross beam 11, the support pipe 12 is fixedly arranged on the middle section of the linear guide rail 14 through a support connecting plate 16, sliding blocks 15 are movably connected to two ends of the linear guide rail 14, a sliding block mounting plate 17 is connected to the sliding blocks 15, the folding edge device 13 is arranged on the sliding block mounting plate 17, the folding edge device 13 comprises a first folding corner plate 131 and a second folding corner plate 132, the end section of the first folding corner plate 131 is rectangular, the second folding corner plate 132 comprises a guide corner baffle 1322 with an L-shaped top surface and a guide corner insert plate 3 with a T-shaped top surface, the guide side vertical plate 132 is inclined from the top edge to the bottom edge in a triangular plate area one 1311 in a 45 DEG away from the support pipe direction, the guide side vertical plate 1323 inner end is inclined from the top edge to the bottom edge in a triangular plate area two 1321 in a 45 DEG, the guide side vertical plate is arranged in the triangular plate area one side face one side of the triangular area one 131, the guide corner baffle 132 is arranged in the triangular area one side 1 is arranged at the triangular area one side of the triangular area, the folding edge is located at the side of the side edge 132, the side of the folding edge 132 is located at the two folding edge, the side of the folding edge 132 is located at the folding edge, and the folding edge device is located at the folding edge device 132, and is located at the folding device.
The upper surface of the supporting tube 12 is higher than the upper surface of a hemmer 13, and the middle is higher and the two ends are lower, so that the cloth is flattened. The upper edges of the vertical plates of the second angle plate 132, which are far away from the leading-in side and the leading-out side of the supporting tube, are arc edges, so that the cloth is prevented from being scratched. The hemmer leading-in side gusset plate 131 is connected with a reverse L-shaped lining limiting plate 18 downwards.
The first guiding-out side folding corner plate 131 of the hemmer is downwards connected with a driving plate 19, the bottom end of the driving plate 19 is connected with a movable connecting plate 110, the movable connecting plate 110 is connected with an adjusting plate 111 provided with an adjusting hole, the adjusting plate 111 is fixed on an adjusting seat 112, and the adjusting seat 112 is used for connecting a hemming sewing platform.
As shown in fig. 10 to 13, the two-fold mechanism comprises a mounting plate 21, a guide bar 22, an inner inserting plate 23, a lower bracket 24 and a bracket member 25, wherein the L-shaped guide bar 2 comprises a front guide plate 221 and a strip folded plate 222 extending from the outer side to the rear end of the guide plate, the mounting plate 21 with a 7-shaped end face comprises a transverse top plate 211 and a vertical plate 212, the inner side part of the guide plate 21 is fixed on the transverse top plate 211 of the mounting plate 21, a space is reserved between the strip folded plate 222 of the guide bar 22 and the mounting plate 22, the inner side edge of the inner inserting plate 23 is positioned at the space, the inner side edge of the inner side is bent downwards to form a connecting plate 233 and is used for being fixed on the vertical plate 212 of the mounting plate, the front end of the inner side edge of the inner side is inclined downwards and extends below the guide plate 221 to form a folded edge guide opening 231, the outer side edge of the rear end of the inner side is inclined towards the direction of the strip folded plate 222 and is pressed above the strip folded edge of the rear end to form a folded edge guide opening 232, the lower bracket 24 with an end face in a L shape is supported by the bracket member 25 fixed on the vertical plate 212. A supporting strip 26 is arranged at a gap below the rear ends of the strip folded plates of the guide strips, and the supporting strip 26 is connected to a vertical plate 212 of the mounting plate through a mounting adjusting seat 27. An L-shaped connecting piece 29 is arranged on the inner side of the vertical plate 212 of the mounting plate 21, the vertical plate 212 and the vertical plate of the connecting piece 29 are fixed through bolts, and a bottom transverse plate of the connecting piece 29 is fixed on a sliding block 281 of the hand wheel screw sliding table 28.
The front end corner of the outer side part of the guide plate 221 of the guide bar 22 is an arc corner 223; the elongate flap 222 of the guide bar 22 widens from narrow from front to rear. The front end of the bottom plate of the lower bracket 24 is inclined inwards and downwards to form a resistance plate 241.
The front of the cloth passes through a folding mechanism 1, two edges of the cloth pass through a hemmer 13 to finish 45-degree angle folding twice, and two edges of the cloth are curled downwards as shown in fig. 14; the folded cloth then enters the station of the two-folding mechanism 2, the folded edge of the cloth is turned over to the upper surface of the inner inserting plate 23 below the guide strip 22 through the edge folding inlet, the outer side edge of the inclined inner inserting plate in the forward direction pushes the folded edge to the outer side, and finally the folded edge is folded into the folded edge part for wrapping the guide strip to be output, and the whole folded edge forms a folded wrapping edge with downward curled edges, as shown in fig. 15, so that stable production is ensured.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (8)
1. The double-side downward hemming folding device of the automatic sewing machine comprises a hemming mechanism (1) transversely arranged at the leading-in end of the cloth and a hemming mechanism (2) arranged at the rear part of the hemming mechanism and on hemming sewing platforms at the left side and the right side, and is characterized in that:
the folding mechanism comprises a support pipe (12) arranged on a guide-in cross beam (11) and a folding edge device (13) at two ends of the support pipe, a linear guide rail (14) is arranged on the guide-in cross beam (11), the support pipe (12) is fixedly arranged on the middle section of the linear guide rail (14), the folding edge device (13) is movably arranged on two ends of the linear guide rail (14) through a sliding block (15), the folding edge device (13) comprises a folding angle plate I (131) and a folding angle plate II (132), an outer end guide side vertical plate of the folding angle plate I (131) is inclined from the top edge to the bottom edge in a direction far away from the support pipe by 45 degrees to form a triangular plate area I (1311), an inner end guide side vertical plate of the folding angle plate II (132) is inclined from the top edge to the bottom edge in the direction of the support pipe by 45 degrees to form a triangular plate area II (1321), the guide-in side vertical plate II (132) is positioned on the inner side of the triangular plate area I (1311), the guide-out side vertical plate I (131) is positioned on the inner side of the triangular plate area II (1321) of the folding angle plate II, and a Z-shaped gap type folding edge gap between the folding angle plate I (131) and the folding edge device is in butt joint; the end section of the first triangular plate (131) is rectangular, the second triangular plate (132) comprises an introduction angle baffle (1322) with an L-shaped top surface and a discharge angle plugboard (1323) with a T-shaped top surface, the introduction angle baffle (1322) is installed at the inner side of a triangular plate area I (1311) of the first triangular plate in a clearance way, and the outer end surface of a discharge side riser of the first triangular plate (131) is positioned at the joint of a transverse riser and a longitudinal riser of the discharge angle plugboard (1323); the hemmer guiding-out side folding angle plate I (131) is downwards connected with a driving plate (19), the bottom end of the driving plate (19) is connected with a movable connecting plate (110), the movable connecting plate (110) is connected to an adjusting plate (111) provided with an adjusting hole, the adjusting plate (111) is fixed on an adjusting seat (112), and the adjusting seat (112) is connected with a hemming sewing platform;
the two-fold mechanism comprises a mounting plate (21), guide bars (22), an inner inserting plate (23) and a lower bracket (24), wherein the L-shaped guide bars (22) comprise a front end guide plate (221) and strip folded plates (222) extending from the outer side to the rear end of the guide plate, the end face of the mounting plate (21) is 7-shaped, the inner side of the guide plate (221) is fixed on a transverse top plate (211) of the mounting plate (21), a space is reserved between the strip folded plates (222) of the guide bars (22) and the mounting plate (21), the inner inserting plate (23) is located at the space, the front end of the inner inserting plate is obliquely extended below the guide plate (221) downwards to form a folded edge guide opening (231), the outer side of the rear part is obliquely arranged above the strip folded plates (222), the tail end of the L-shaped guide bar guide opening (232) is formed, and the end face of the L-shaped lower bracket (24) is leaning against the outer side and the lower side of the guide bars (22).
2. The automatic sewing machine double-sided downward hemming folding apparatus of claim 1 wherein: the upper surface of the supporting tube (12) is higher than the upper surface of a hemmer (13).
3. The automatic sewing machine double-sided downward hemming folding apparatus of claim 1 wherein: the leading-in side folding angle plate I (131) of the hemmer is downwards connected with a reverse L-shaped lining limiting plate (18).
4. The automatic sewing machine double-sided downward hemming folding apparatus of claim 1 wherein: a guiding roll shaft (113) is arranged behind the guiding cross beam (11).
5. The automatic sewing machine double-sided downward hemming folding apparatus of claim 1 wherein: the width of the strip flap (222) of the guide strip (22) is widened from the front end to the rear end.
6. The automatic sewing machine double-sided downward hemming folding apparatus of claim 1 wherein: a resistance plate (241) is obliquely arranged inwards and downwards at the front end of the bottom plate of the lower bracket (24).
7. The automatic sewing machine double-sided downward hemming folding apparatus of claim 1 wherein: an L-shaped connecting piece (29) is arranged on the inner side of a vertical plate (212) of the mounting plate (21), the vertical plate (212) is fixed with a vertical plate of the connecting piece (29) through bolts, and a bottom transverse plate of the connecting piece (29) is fixed on a sliding block (281) of the hand wheel screw sliding table (28).
8. The automatic sewing machine double-sided downward hemming folding apparatus of claim 1 wherein: the front end corner of the outer side part of the guide plate (221) of the guide bar (22) is an arc corner (223).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210944363.5A CN115354452B (en) | 2022-08-08 | 2022-08-08 | Double-side downward hemming folding device of automatic sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210944363.5A CN115354452B (en) | 2022-08-08 | 2022-08-08 | Double-side downward hemming folding device of automatic sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115354452A CN115354452A (en) | 2022-11-18 |
| CN115354452B true CN115354452B (en) | 2023-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210944363.5A Active CN115354452B (en) | 2022-08-08 | 2022-08-08 | Double-side downward hemming folding device of automatic sewing machine |
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| CN106521827A (en) * | 2016-12-29 | 2017-03-22 | 杰克缝纫机股份有限公司 | Sewing equipment and sewing method of ring-shaped folded edges |
| KR102093693B1 (en) * | 2018-09-28 | 2020-03-26 | 김원중 | The sewing device for the non woven fabric |
| KR20210007107A (en) * | 2019-07-10 | 2021-01-20 | 주식회사 코튼밀 | How to Stitch on Clothes with Improved Method |
| JP2021094261A (en) * | 2019-12-18 | 2021-06-24 | Juki株式会社 | Sewing system |
| CN114737322A (en) * | 2021-03-29 | 2022-07-12 | 常州智谷机电科技有限公司 | Sewing equipment |
| CN217050997U (en) * | 2021-12-30 | 2022-07-26 | 昆山市海进机械有限公司 | Automatic quilt folding machine with high efficiency |
| CN114850303A (en) * | 2022-04-20 | 2022-08-05 | 昆山友茂电子有限公司 | Automatic folding machine |
-
2022
- 2022-08-08 CN CN202210944363.5A patent/CN115354452B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106521827A (en) * | 2016-12-29 | 2017-03-22 | 杰克缝纫机股份有限公司 | Sewing equipment and sewing method of ring-shaped folded edges |
| KR102093693B1 (en) * | 2018-09-28 | 2020-03-26 | 김원중 | The sewing device for the non woven fabric |
| KR20210007107A (en) * | 2019-07-10 | 2021-01-20 | 주식회사 코튼밀 | How to Stitch on Clothes with Improved Method |
| JP2021094261A (en) * | 2019-12-18 | 2021-06-24 | Juki株式会社 | Sewing system |
| CN114737322A (en) * | 2021-03-29 | 2022-07-12 | 常州智谷机电科技有限公司 | Sewing equipment |
| CN217050997U (en) * | 2021-12-30 | 2022-07-26 | 昆山市海进机械有限公司 | Automatic quilt folding machine with high efficiency |
| CN114850303A (en) * | 2022-04-20 | 2022-08-05 | 昆山友茂电子有限公司 | Automatic folding machine |
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| Publication number | Publication date |
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| CN115354452A (en) | 2022-11-18 |
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