CN1113976A - Blanket sewing method and device - Google Patents

Abstract

The invention relates to a sewing method and a device capable of sewing binding cloth on four cloth edges of a blanket material cut by a long blanket cloth, which can adjust the transverse position of the long blanket cloth while continuously moving the long blanket cloth, send the bent binding cloth edge to the corresponding cloth edge of the blanket cloth and cover the cloth edge under the state that the blanket cloth horizontally advances, and sew the binding cloth edge on the cloth edge in a straight line manner, thereby improving the manufacturing efficiency of a longitudinally knitted blanket and reducing the generation of defective products.

Description

The present invention relates to a sewing method and device for correctly and automatically sewing left and right hemming fabrics on the left and right hems of long felt fabrics, and relates to a method and device capable of correctly and quickly sewing the upper and lower hems of each piece of blanket material to be cut. A sewing method and device for sewing upper and lower hemming cloth.

When using a double-helix machine such as a curlmirer to make a longitudinally knitted blanket, it is generally first woven into a double-sided fabric, and then cut into two longitudinally knitted blanket fabrics by central cutting. The characteristic of such a longitudinally knitted blanket structure is that it is rich in horizontal stretchability, so when the longitudinally knitted blanket fabric cut in the center is conveyed in a straight line for sewing, it will snake and make the cloth pattern of the selvage easy to bend , especially the selvedges in the up and down directions of the longitudinal knitted blanket fabric are easy to stretch and deform. In the past, when sewing hemming fabric around the longitudinally knitted blanket fabric, two long longitudinally knitted blanket fabrics were stacked and cut one by one according to the predetermined size, and then the sewing worker fixed the longitudinally knitted blanket fabric up and down with a dummy sewing machine. Afterwards, use a sewing machine to sew binding on the four edges of the blanket fabric.

With the aforementioned sewing method, if the sewing worker is not familiar enough with the technology, he cannot make a straight line stitch along the edge of the blanket fabric, especially on the horizontal edge of the longitudinally knitted blanket fabric that is easy to stretch. Difficult for the unskilled. Moreover, if the long longitudinal knitted blanket fabrics are cut one by one according to the predetermined size before sewing the hemming cloth, the sewing operation of the hemming cloth can only be carried out by discontinuous manual operation, and it is impossible to expect to improve the seam quality. manufacturing efficiency.

The applicant has proposed the method of longitudinally sewing two longitudinally knitted blanket fabrics in Japanese Patent Publication No. 56-169873 and No. 56-16974, Japanese Patent Publication No. 59-4155, etc. Utilize these methods, though two length-knitted blanket cloths can be superimposed and sewed approximately correctly, but these methods can't be utilized when the left and right and upper and lower selvedges of the blanket cloths are sewed together. For example, in Japanese Patent Laid-Open No. 56-169873, two overlapping longitudinal knitted blanket fabrics are temporarily sewed together, and after being cut to the length of the blanket, the blanket fabric is sent out with a conveying conveyor belt, and one side of the blanket fabric is trimmed. Sewing, then reverse the displacement of the blanket with the reversing device, and then sew other selvedges of the blanket cloth, thereby sewing the surrounding selvedges of the blanket cloth. Although this method can be used to sew the edges around the two pieces of longitudinally knitted blanket fabrics, it is impossible to sew the edge fabrics on the edges of the blanket fabrics. Next to it is another work process. In Japanese Patent Laid-Open No. 56-169874, by using one of the cloth tracking platforms as a trolley that can shake left and right, two longitudinally knitted blanket cloths can be aligned with the flanges. In this way, if only one of the cloth tracking platforms can move, then when the lateral deviation of the two felt cloths becomes large, the flanges cannot be completely aligned, and defective products are likely to be produced especially during high-speed sewing.

In addition, in the method shown in the Japanese Patent Publication No. 56-29257, high-frequency or heating convex is used to perform horizontal linear heat-pressing on the superimposed two longitudinally-knitted felt fabrics, and between the two linear heat-pressing parts After intercropping and cutting, cover each hot-pressed part with hemming cloth and sew the edges. If this method is used, since the horizontal selvedges of the stretchable longitudinal knitted blanket fabric are pre-fixed with heat and pressure, even an inexperienced sewing worker can correctly sew the horizontal selvedges. However, the device used in this method needs a high-frequency or heating machine equivalent to the width of the longitudinally knitted felt fabric, so the power consumption is large and the running cost is high, and the horizontal selvage of the longitudinally knitted felt fabric is heated Melting reduces the stretchability of the blanket, and loses the excellent touch of the longitudinal knitted blanket.

The present invention is proposed to improve the sewing method of four selvages of a felt material cut from a long felt fabric, and aims to provide a method for continuously and automatically sewing a longitudinal hemming fabric to the left and right selvages of a long felt selvage Sewing method and device above. Another object of the present invention is to provide a sewing method and device for conveniently linearly sewing the upper and lower hemming fabrics to the cut felt material. Another object of the present invention is to provide a sewing method and apparatus that can reduce the occurrence of defective products while improving the production efficiency of longitudinally knitted blankets.

In order to solve the above-mentioned problems, the present invention provides a sewing method of sending out a long felt fabric and cutting it to a predetermined length, and at the same time sewing hemming fabrics on the left and right selvedges and the upper and lower selvedges of the felt fabric respectively. The feature is that the long blanket fabric is continuously moved while adjusting its lateral position, and while the blanket fabric is running in the horizontal direction, the belts for the hemming fabric on the left and right selvedges are respectively bent in the center of the longitudinal direction and fed into the blanket. At the left and right selvages of the fabric, the hemming cloth is used as a longitudinal hemming cloth to cover the hem of the blanket fabric, and at the same time, a linear seam is performed.

Another blanket sewing method provided by the present invention is a method of sending two long blanket fabrics into and stacking them respectively, cutting the stacked blanket fabrics to a specified length, and sewing the edge cloths on the blankets respectively. A blanket sewing method for the left and right selvages and upper and lower selvedges of a blanket material, characterized in that the blanket material consisting of superimposed blanket fabrics cut to a predetermined length is transferred laterally so that the upper and lower fabrics of the blanket material are transported horizontally. The side is parallel to the direction of travel of the transfer conveyor belt, so that the edge of the hemming cloth is bent at the center of the length direction and fed into the upper or lower hem of the felt material, so that the hemming cloth is wrapped with the belt as a lateral hemming cloth The selvedge of the blanket material is stitched in a straight line at the same time.

In order to implement the above two methods, the present invention provides two devices.

A blanket sewing device provided by the present invention includes: a mechanism for continuously sending out long blanket fabrics, a mechanism for sewing edged fabrics on the left and right edges of the blanket fabric, and cutting the long blanket fabrics into blanket materials of a specified length and the mechanism for sending out, and the mechanism for sewing the hemming cloth to the upper and lower edges of the blanket cloth respectively, is characterized in that it also includes: a cloth conveying machine for advancing the long felt cloth, which is adjacent to the cloth conveying machine and A sewing table that can move in a direction perpendicular to the direction of travel of the felt fabric, hemming fabric sewing machines installed on both sides of the sewing table, and a loop that guides the hemming fabric belt from the belt drum to a position close to the sewing needle The folding guide part is used to sew the hemming cloth belt to the left and right selvedges of the felt cloth with a sewing machine while the felt cloth travels on the meandering guide part.

Another blanket sewing device provided by the present invention includes: a mechanism for continuously sending out long blanket fabrics, a mechanism for sewing hemming fabrics on the left and right edges of the blanket fabric, and cutting the long blanket fabrics into blanket materials of a specified length and the mechanism for sending out, and the mechanism for sewing the hemming cloth on the upper and lower edges of the blanket cloth respectively, are characterized in that they also include: a cutting device for cutting the long blanket cloth into a certain length, and a conveying device for sending out the cut blanket material. an outgoing conveyor belt, a shake-off conveyor belt arranged horizontally below the outgoing conveyor belt and capable of moving back and forth, a transfer conveyor belt positioned below the shake-off conveyor belt in an advancing state and arranged orthogonally to the outgoing conveyor belt, The hemming fabric sewing machine arranged on one side or both sides of the belt of the transfer conveyor belt, and the zigzag guide member that guides the hemming fabric belt from the belt drum to the vicinity of the needle position of each hemming fabric sewing sewing machine are described in the When the felt material passes through the zigzag guide member, the hemming cloth is sewn to the upper and lower selvedges of the felt material with a tape using a sewing machine.

A brief description of the drawings

Fig. 1 is a schematic explanatory view showing the overall configuration of a blanket sewing device according to the present invention.

Fig. 2 is a schematic side view of a fabric conveyor as a felt fabric delivery mechanism, in which a bobbin and the like are shown in cross-section for easy identification.

Fig. 3 is a schematic side view showing the sewing table and the hemming sewing machine, showing the bobbins and the like in cross-section similarly to Fig. 2 .

Fig. 4 is a schematic plan view of the sewing table and the hemming sewing machine shown in Fig. 3 .

Fig. 5 is a plan view of important parts showing the arrangement state of the zigzag guide members of the hemming tape.

FIG. 6 is a perspective view showing a part of the meander guide member in FIG. 5 .

Fig. 7 is an enlarged cross-sectional view of the edge of the felt fabric along the line A-A of Fig. 5 .

Fig. 8 is a partial front view of a cutting device for cutting long felt fabrics, the cutting device having a blower mechanism and a lower cutting mechanism.

Fig. 9 is a cross-sectional view of the cutting device and the delivery conveyor belt in Fig. 8 taken along line B-B in Fig. 8 .

Fig. 10 is a partial plan view showing a long longitudinal knitted felt fabric processed in the present invention.

Fig. 11 is a schematic plan view showing a group of conveyor belts conveying the cut felt material.

Fig. 12 is a schematic side view illustrating the operation of vibrating the conveyor belt.

Fig. 13 is a plan view of important parts showing the arrangement of meandering guide members of the tape for hemming cloth similarly to Fig. 5 .

Fig. 14 is a partial perspective view of the meandering guide member in Fig. 13 similar to Fig. 6 .

Fig. 15 illustrates a schematic plan view of a top and bottom hemming fabric sewing mechanism provided with a fabric reversing machine.

The blanket sewing device 1 according to the present invention, as shown in FIG. 1 , includes: a mechanism 2 for continuously aligning long blanket fabrics with flanges, and a mechanism 3 for sewing hemming fabrics on the left and right edges of the blanket fabric respectively. , the mechanism 4 that cuts the long felt cloth into a predetermined length of felt material and sends it out, and the mechanism 5 that sews the hemming cloth on the upper and lower edges of the felt cloth respectively. The sewing device 1 is generally used when sewing the hemming cloth on the four selvedges of a double-folded longitudinal knitted blanket, but it can also be used to sew the hemming cloth on the four selvedges of common blanket fabrics. on occasion. And, as for the sewing mechanism 5 of the hemming cloth up and down, if as shown in Figure 1, the cloth reversing machine 7 (Fig. 15) is arranged between the 2 hemming cloth sewing sewing machines 6, then the sewing machines 6, 6 are arranged on the same side of the conveyor belt. On the one hand, if this cloth reversing machine 7 is not set as in Fig. 1, then the sewing machines 6, 6 are respectively arranged on opposite sides of the conveyor belt.

The alignment flange mechanism 2 of the blanket cloth, as shown in Figure 2, is formed by the cloth conveyer 11 that adjusts the horizontal position when the long felt cloth is carried out. The properties of the blanket cloth 10 are appropriately changed. At the rear of the cloth conveying machine 11, the cloth tracking platform 12 carrying the felt cloth is set, and the cloth tracking platform 12 can move in a direction orthogonal to the direction of travel of the felt cloth, and utilize the fixed frame mounted on the cloth conveying machine 11 to Photocell 13 to control the lateral position. At this time, if two blanket fabrics 10, 14 are to be advanced respectively with the fabric conveyor 11, two fabric tracking platforms 12, 15 respectively carrying the blanket fabrics 10, 14 need to be provided.

The sewing mechanism 3 of the left and right hemming fabrics is shown in Figure 1. It is arranged adjacent to the alignment flange mechanism 2 and can move in a direction perpendicular to the direction of travel of the superimposed felt fabrics (Figure 3). Constituted, shown in Figure 4 and Figure 5 again, possess the hemming cloth stitching sewing machine 18,18 that is respectively arranged on the both sides of sewing table 17, and the hemming cloth is used to guide from belt drum 20 to the position close to the sewing needle. The meandering guide part 21. As can be seen from Fig. 6 and Fig. 7, when the hemming cloth tape 19 passes through the meandering guide member 21, it is bent at the center in the longitudinal direction, and the hemming cloth belt 19 is used for sewing under the state that the hemming cloth is used as a longitudinal hemming cloth covering the edge of the felt fabric. stitches. The lateral position of the sewing table 17 is controlled by edge detectors 22 , 22 respectively arranged on both sides of the sewing table 17 .

As shown in Figure 8, Figure 9, Figure 11, and Figure 12, the cutting mechanism 4 that cuts the long felt cloth into felt materials of a predetermined length and sends out includes a cutting device 25 that cuts the long felt cloth with a certain length. A take-out conveyor 26 for sending out the cut felt material, a shake-off conveyor 27 arranged horizontally below the take-out conveyor 26 so as to be movable back and forth, and the like. In addition, as shown in Figure 1 and Figure 11, the sewing mechanism 5 of the hemming cloth up and down is arranged on the transfer conveyor belt 28 arranged orthogonally to the delivery conveyor belt 26 by being positioned at the advancing shake-off conveyor belt 27 below. One side or both sides of the conveyor belt 8 of the conveyor 28 are composed of hemming cloth sewing machines 6, 6, etc.; The tape drum 31 is guided to a zigzag guide member 32 near the position of the sewing needle. Referring to Fig. 6 and Fig. 7 in the same way, it can be seen that the tape 30 for the hemming cloth is bent at the center in the longitudinal direction when passing through the meandering guide member 32, and when the hemming cloth tape 30 is used as the lateral hemming cloth to wrap the felt material. In the state of the selvedge, it is sewn with a sewing needle.

In the sewing method of the present invention, the long blanket fabrics, such as two longitudinally knitted blanket fabrics 10 and 14 are sent out respectively on the fabric conveyor 11, and the horizontal position is adjusted to be completely superimposed while continuously advancing. The superimposed blanket fabrics 10, 14 are fed into the fabrics on both sides of the blanket fabrics 10, 14 under the condition that the hemming fabric belts 19, 19 are respectively bent in the center of the longitudinal direction in the state that the fabric tracking platform 12 advances in the horizontal direction. At the edge, wrap the hem of the blanket fabric with the band 19 as the longitudinal hemming cloth, and sew it down in a straight line. Then, at the cutting device 25, the long longitudinal knitted felt fabric 10 is cut one by one at right angles into felt materials 33 of specified size (Fig. Transfer in the horizontal direction so that the upper and lower edges of the felt material 33 are conveyed in parallel with the direction of travel of the transfer conveyor belt 28, and the edge cloth is sent to the upper or lower cloth of the felt material 33 while being bent in the center of the longitudinal direction with the belt 30. At the edge, the tape 30 for hemming cloth is wrapped on the hem of the felt material 33 as a horizontal hemming cloth, and at the same time, it is sewn down in a straight line. This sewing method is, for example, shown in FIG. 11 , while the blanket material 33 is transferred laterally, the horizontal hemming cloth is sewed to one of the upper and lower edges of the felt material in a straight line along the hemming cloth belt 30 by hand. Next, the felt material 33 is conveyed as it is, and the horizontal hemming cloth is linearly sewed to another place of the upper and lower selvage along the hemming cloth belt 30 . This sewing method also can be shown in Fig. 1 and Fig. 15, along the hemming cloth belt 30, the horizontal hemming cloth is sewed to one of the upper and lower selvedges of the blanket material 33 in a straight line, and then the cloth reversing machine 7 The blanket material 33 is reversed 180 degrees, and the horizontal hemming cloth is sewed linearly to another place of the upper and lower selvage along the hemming cloth belt 30. If it is set to be slightly faster than the cloth feeding speed of each hemming sewing machine 6,6, then the sewing operation is easier and ideal.

Next, if the present invention is described with reference to the embodiment, the configuration state of the blanket sewing device 1 of the present invention is shown in Fig. The two pieces of fabric are overlapped, and the four selvedges of the cut blanket are sewed with hemming fabric. The sewing device 1 of the blanket comprises an alignment flange mechanism 2 of the long felt cloth, a mechanism 3 for sewing the longitudinal hemming cloth on the left and right edges of the felt cloth, a cutting and sending mechanism 4 of the long felt cloth, and an The upper and lower selvedges are used to sew the mechanism 5 of the horizontal hemming cloth, and install various attachments as required.

The alignment flange mechanism 2 of the long blanket cloth is the cloth conveyer 11 as shown in Figure 2, has the fixed frame 40 that many conveying rollers are installed freely rotatably, disposes two cloth tracking platforms 12, 12 in the rear of this fixed frame 40 15. Tracking platform 12,15 can be configured on the fixed bed, can slide parallel to the length direction of the driving conveying rollers 41,42 positioned at the top of the fixed frame 40, utilize the rotating shaft of the fixed motor 43 (Fig. The felt fabrics 10 and 14 move in a direction perpendicular to the traveling direction. The long outer felt cloth 10 of folding is carried on the tracking platform 12, and the long inner felt cloth 14 of folding is carried on the tracking platform 15, and is sent to the direction of the cloth conveyor 11 in sequence. Tracking station 12,15 detects the flange position of two felt cloths 10,14 by using the photocell 13,13 of the more rear of mating cylinder 44,45, makes motor 43,43 proper operation, makes two felt cloths 10,14 Move laterally with full overlap. The driving conveying rollers 41, 42 are needle planting rollers positioned above the fixed mount 40, and the felt fabrics 10, 14 sent back above the fixed mount 40 are transported downwards respectively. The drive feed rollers 41 and 42 may be arranged in a pair with the adjacent needle planting rollers 46, and the extension of the felt fabric 10 or 14 can be adjusted by controlling the rotation with a brake (not shown). In addition, the felt fabrics 10, 14 descending from the top of the fixing frame 40 are conveyed forward respectively, and after passing through the photocells 13, 13 for flange position detection, the felt fabrics 10, 14 are stacked by appropriate rollers, and transferred to On the belt conveyer belt 48 of workbench 47.

As shown in FIG. 4 , the sewing mechanism 3 for the left and right selvedges, that is, the sewing table 17 is arranged to intersect with the table 47 ( FIG. 2 ) located in front of the material conveyor 11 . As can be seen from Fig. 3, under the sewing platform 17, in order to correctly sew the hemming cloth at the two selvedges of the long felt cloth 10 that is advancing, the track 50, 50 that can be installed on the belt conveyor belt 48 orthogonal to the workbench 47 Wheels 51 for walking. As can be seen from FIG. 4 , the sewing table 17 is provided with hemming sewing machines 18 and 18 respectively arranged on both sides above it, and elongated zigzag guide members 21 located on both sides of the sewing machines. The interval between the sewing needles of the two sewing machines 18 and 18 is limited to be slightly narrower than the width of the felt fabric 10 . The lateral position of the sewing table 17 is controlled by edge detectors 22, 22 of the photocells respectively arranged on both sides in front of it. That is to say, the sewing table 17 is controlled by the edge detectors 22 and 22 to continuously touch the flange of the felt fabric 10, even if the blanket fabric 10 is snaked, it will follow the position of the flange of the blanket fabric on the rails 50 and 50. Move left and right, so the two suture sewing machines 18, 18 also follow the position of the flange to suture, and become a complete straight line suture. At the sewing station 17, if the blanket fabric 10 is close to two needles 53, 53 (Fig. 7) of the two stitching sewing machines 18, 18, the hemming fabric belt 19 of the zigzag guide part 21 passes through the sewing machine near the blanket fabric 10. The end portion of the hemming cloth is sewn by the sewing machine 18 to form a vertical hemming cloth 52 .

As shown in FIGS. 5 and 6, on the sewing table 17, the elongated meandering guide member 21 has an introduction portion 54 extending approximately parallel to the front side of the hemming cloth sewing machine 18, and an approximately right-angled portion bent with the introduction portion 54. The lead-out portion 55 extending parallel to the longitudinal edge portion of the felt fabric 10 is folded. The end surface of the introduction portion 54 facing the tape drum 20 is approximately flat, and gradually forms a hillside bend in the center of the longitudinal direction as it approaches the felt fabric 10, and finally forms a second wall 56, and guides the hemming cloth belt 19 into the two walls. Between the layer wall 56 and the introduction part 54 . Since the lead-out part 55 continuous with the lead-in part 54 is shown in FIG. 7, the valley side bend is formed in the center of the longitudinal direction, and both ends are bent in a U-shape, so the hemming cloth belt 19, that is, the longitudinal hemming cloth 52 covers the felt cloth. 10 side ends. The tape 19 for the hemming cloth is pulled out from the tape drum 20 in the horizontal direction and passes through the introduction portion 54 of the meandering guide member 21. When the parts are in contact with each other, fold back outwards to cover the end of the felt cloth, and utilize two needles of the sewing machine 18 to sew the covered hemming cloth 52 with flat sutures. The blanket fabric 10 that has stitched the longitudinal hemming cloth 52,52, as shown in Figure 3, passes through a plurality of guide rollers 57, after shaking off between the guide rollers 58,58, one side is separated front and back, and one side is piled up on the square frame 59 ( Figure 3). The felt fabric 10 in the frame 59 is pulled out from the bottom in the frame and sent to the cutting device 25 . The long felt cloth 10 will temporarily remain in the frame 59 because the stitching of the longitudinal hemming cloths 52, 52 is a continuous operation, while the cutting of the felt cloth by the cutting device 25 is an intermittent operation.

Next, the mechanism 4 that cuts the long felt fabric 10 (referring to FIG. 10 ) into a felt material 33 of a predetermined length and sends it out is composed of the cutting device 25 shown in FIGS. 8 and 9 . Then there is a horizontal carrying-in conveyor belt 61 and a horizontal and elongated carrying-out conveyor belt 26 . The conveyor belts 61 and 26 are generally a plurality of wide conveyor belts arranged side by side so that the felt fabrics run in the longitudinal direction. In the cutting device 25, on the base of the conveyor belts 61, 26, a pair of rails 62, 62 are arranged orthogonally at a predetermined interval, and at the same time, the two ends of the two rails are supported by both sides of the base to maintain the level. , 62 in the middle of the length direction will be provided with a base plate 64 with a transverse gap 63 horizontally arranged between the upper side of the belt conveyor. The blower mechanism part 65 of the cutting device 25 is disposed between the rails 62, 62, and the support rollers 66, 66 mounted on both sides of the blower mechanism part travel on the rail 62, and the support rollers 67, 67 contact the rail 62. The lower side is rotated, so the blower mechanism part can walk back and forth between the two ends of the base of the conveyor belts 61,26. Two air jets 68, 68 whose top ends are slightly above the surface of the base are vertically fixed on the blower mechanism part 65, and the two nozzles are located at longitudinally symmetrical positions relative to the slit 63 of the base plate 64. Air is supplied to the nozzles 68, 68 through a pipe 70 by a well known blower (not shown), this air being heated by a heater 72 to about 280°C. On the base plate 64, through-grooves 73 and 73 are provided parallel to the slit 63 below the tip of the nozzle, and the high-temperature air from the nozzle 68 flows downward through the through-holes. In the blower mechanism part 65, a pair of rotatable pressing rollers 74, 74 are installed at the front and rear positions of the front end of each nozzle 68. The lower peripheral surfaces of the pressing rollers 74, 74 are close to the surface of the base plate 64. The elongated pressing plate 76 that can be raised and lowered is arranged orthogonally to the base plate 64, and is located at a position parallel to the rail 62. Do not block the gap.

On the one hand, the cutting mechanism part 77 of the cutting device 25 is provided with freely rotatable rollers 78, 78 below, and the trolley 60 can travel laterally on the rail 80, and the trolley 60 can be moved by the chain 81 connecting the front and rear of the trolley. Together with the chain 75, it advances synchronously with the blower mechanism 65. Below the slit 63 of the base plate 64, on one side of the trolley 60, free-rotating circular cutting machines 82 and 83 are vertically installed at specified intervals, and a rectangular plane electric heater 84 is vertically arranged between the two circular cutting machines. . Utilizing the motor provided in the trolley 60, the circular cutter 82 is rotated clockwise through the belt 86 as shown in FIG. 8 , and the circular cutter 83 is rotated counterclockwise through the belt 86 . The upper parts of the circular cutters 82, 83 and the hot plate electric heater 84 are fitted into the gap 63 of the base plate 64 and protrude from the surface of the base plate.

The long blanket fabric 10 is pulled out from below in the box 59 (Fig. 3), and advances on the conveyor belts 61, 26 according to the arrow direction of Fig. 9 . The cutting device 25 stops at the right end or the left end on the base plate 64 when the felt fabric 10 travels. When the front end of the felt fabric 10 passes through the cutting line a (see FIG. 10 ) on the base plate 64 and reaches a position of a preset length (usually 2 m), the sensor (not shown in the figure) installed at this position The movement of the front end of the felt cloth is detected, and the belt conveyors 26, 61 are stopped. When the front end of the felt material 10 reaches a predetermined position and stops, the originally ascending pressing plate 76 descends to fix the felt fabric 10, and then the blower mechanism part 65 and the cutting mechanism part 77 advance synchronously along the rails 62, 62. In this way, the felt cloth 10 is cut at the cutting line a by the circular cutting machine 82 or 83, and at the same time, the front cloth is flattened by the press rollers 74, 74, and the felt cloth is cut with high-temperature air from the nozzles 68, 68. The surfaces of are melted in parallel (see a pair of lines 87, 87 in FIG. 10). At the same time, the front and rear cut end faces of the felt fabric 10 are brought into contact with the hot plate heater 84, and these parts are fused. As a result, thin hot-melt portions are formed on the front and rear end surfaces of the cut felt material 33, and the surface side cloth does not become round after being cut due to this hot-melt portion, and due to the fusion of the cut end faces, it can be prevented from coming out of the felt material. Raveling occurs.

Cutting, send-out mechanism 4 as shown in Figure 11 and Figure 12, comprises the conveyer belt 26 that sends out the felt material of cutting, the lower side of conveyer belt 26 horizontally arranges and shakes off conveyer belt 27 that can move back and forth, and is located at On the lower side of the conveyor belt 27, the receiving conveyor belt 91 is adjacent to the transfer conveyor belt 28 on the same plane and runs in the same direction. The conveyor belts 26 and 27 are generally formed by arranging a plurality of wide belts in parallel. The felt material 33 (FIG. 10) cut by the cutting device 27 is carried on the delivery conveyor belt 26 and sent out, and the shake-off conveyor belt 27 on the lower side of the delivery conveyor belt is transferred to and sent out via the receiving conveyor belt 91. The conveyor belt 26 is orthogonally arranged on the conveyor belt 28 . This conveying process can be known from Fig. 12 shown in sequence, and the shake-off conveyor belt 27 is made of a pair of pulleys 92, 92 and several endless belts 93, and can move forward and backward in the horizontal direction from the bottom of the conveyer belt 26. . As shown in Fig. 12 (1), the felt material 33 after cutting is carried out with the conveyor belt 26. Once the front end 94 of the felt cloth is carried on the belt 93 of the shake-off conveyor belt 27, the sensor (not shown in the figure) is activated. Accordingly, the belt 93 does not rotate, and the conveyor belt 27 advances at the same speed as the rotation speed of the conveyor belt 26 (see FIG. 12( 2 )). Once the felt material reaches the upper position of the receiving conveyor belt 91 and the advancement of the conveyor belt 27 ends, as shown in Fig. 12(3), the belt 93 rotates and the conveyor belt 27 retreats. At this time, the receiving conveyor belt carrying the felt material 33 91 stopped. As shown in Figure 12 (3), once the conveyor belt 27 retreats completely, as shown in Figure 12 (4), the rotation of the belt 93 stops, and the conveyor belt 27 advances to the middle position at the same speed as the rotation speed of the conveyor belt 26 again. Finally, as shown in Figure 12 (5), when the belt 93 rotates and the conveyor belt 27 is completely retreated, the remaining part of the felt material 33 is all carried on the receiving conveyor belt 91, and then the receiving conveyor belt 91 is operated to remove the blanket. The material 33 is sent to the transfer belt 28 , ie in the direction of the sewing machine 6 .

The sewing mechanism 5 of the hemming cloth up and down is shown in Figure 11, by the transfer conveyor belt 28 that is arranged orthogonally with the conveyer belt 26, and the hemming cloth configured on one side or both sides of the belt 8 of the transfer conveyor belt 28 The stitching sewing machines 6, 6 are constituted, and as shown in FIG. The meandering guide member 32 shown in FIGS. 13 and 14 is substantially the same as the structure shown in FIGS. 5 and 6 described above. Also, at the rear of the stitching machine 6, as shown in Fig. 13 schematically shown, rollers 95, 96 for sending out the edges of the felt fabric are provided, and a rotatable hemming cloth cutting tool is installed between the two rollers. Machine 97. Because the rotational speed of the rollers 95, 96 that send out the blanket fabric edge is equal to the cloth feeding speed of the sewing machine 6, the blanket fabric edge after sewing the hemming cloth 98 will not stay behind the sewing machine 6, and the blanket fabric edge Stretching by the rollers 95, 96 does not occur.

The needle plate 100 (FIG. 14) of the sewing machine 6 is different in plane shape from the conventional needle plate. Behind the pinhole 101 of the needle plate 100 (ie after the hemming cloth is sewn), there are three right main feeding tooth holes 102, and the main feeding teeth 103 located here will pull the hemming cloth 98 to the rear. As a result, on the needle plate 100 of the sewing machine 6, because the hemming cloth 98 is only sewn by the main feed teeth 103 to pull the hemming backward, so the extension of the felt cloth edge is less, and the pressing plate (on the figure) Not shown) is mainly pressed after sewing the hemming cloth 98, so it has little influence on the extension of the blanket cloth hem. Compared with the past pressing board, the depth length of this pressing board is small, that is, the lateral pressing distance to the cloth edge of the felt cloth is shortened, so the influence on the extension is smaller. Furthermore, on the needle plate 100 , a rectangular notch 106 ( FIG. 13 ) is provided in front of the needle hole 101 , and the front end portion of the meandering guide member 32 can fit into the notch. As a result, at the sewing machine 6, the distance for covering the tape 30 for the hemming cloth with the zigzag guide member 32 is long, and the tape 30 for the hemming cloth is sewn on the felt material 33 at the same time as the covering is completed, so there is no need to Like the conventional needle board, it is necessary to send the belt 30 for the hemming fabric to the direction of the two needles with the feed teeth before the belt 30 for the hemming fabric is sewn together. In the stitching sewing machine 6, although the main feed teeth 103 and the differential feed teeth 105 are disposed in the elongated tooth feed holes 104 at the left end of the needle plate 100, the belt 30 for hemming cloth is not located in the left end tooth feed holes. 104, only the side edges of the felt material 33 effectively bear the shrinkage effect produced by the differential feed teeth 105, and the lateral extension becomes smaller when sewing the hemming cloth. Furthermore, if the main shaft (not shown in the figure) of the sewing machine 6 rotates once, the main feed gear 103 and the differential feed gear 105 will shake, and the front and rear movement distance of the differential feed gear 105 is larger than that of the main feed gear 103. . The difference between the front and rear distances is the amount of shrinkage of the differential feed teeth 105, and the end of the felt material 33 is subjected to the shrinkage effect produced by the differential feed teeth 105, and the lateral extension of the belt 30 for hemming cloth is sewn together. become smaller.

In FIG. 11 , when the felt material 33 carried on the transfer conveyor belt 28 approaches the sewing machine 6 , the operator makes the end surface of the felt material touch the guide plate 107 ( FIG. 13 ) for position adjustment. At the sewing sewing machine 6, the hemming cloth 98 is sewn by wrapping the end of the felt material 33 with the hemming cloth belt 30 supplied from the hemming cloth drum 31 on the right side of the sewing machine. The band 30 for hemming cloth is pulled out from the cylinder 31 in the horizontal direction, and after being slowly bent inward in the longitudinal direction by using the meandering guide member 32 shown in FIG. hold the end. Sewing machine 6 one side uses two needles (referring to Fig. 7) to sew the hemming cloth on the bag flat suture with belt 30, and utilizes roller 95,96 to send hemming cloth 98 to the rear. Between the rollers 95, 96 shown in FIG. 13, a cutting machine 97 that can rotate vertically is provided, and when a piece of felt material 33 passes through, the hemming cloth 98 is cut by the cutting machine 97.

For the sewing mechanism 5 of the hemming cloth up and down, as shown in Figure 1 and Figure 15, if the cloth reversing machine 7 is arranged between two sewing machines 6,6, then the two sewing machines 6,6 can be arranged on the transfer conveyor belt 26 , 110 belts are on the same side. The cloth reversing machine 7 includes: a vertical plate 111 installed vertically outwardly with respect to the rotating plate 109 above, and a holding arm 112 installed vertically inwardly with respect to the rotating plate. The plate 111 and the holding arm 112 are preferably rotated by a pneumatic cylinder and an oscillating hydraulic cylinder fixed to the rotating plate 109 . In FIG. 15 , the hemming cloth 98 is stitched linearly on the upper edge of the felt material 33 by a stitching sewing machine 6 , and then, the cloth reversing machine 7 reverses the felt material 33 by 180 degrees. At this time, the felt material 33 is sent to the conveyer belt 113 by the conveyer belt 26. Due to the presence of the felt material, the photoelectric sensing device (not shown in the figure) increases the speed of the conveyer belt 113 due to being blocked from light, and at the same time , the vertical plate 111 is rotated from a horizontal to a substantially vertical position to stop the felt material 33 . Then, after a predetermined time, the holding arm 112 is rotated 100 degrees back and forth from the vertical position to the longitudinal plate 111, and the blanket material 33 is hugged together with the longitudinal plate 111, and the rotating plate 109 rotates 180 degrees in this state. At the end of this rotation, the holding arm 112 is reversed to its original horizontal position and the felt material 33 is transferred from the conveyor belt 113 to the conveyor belt 110. Then, another sewing machine 6 linearly sews the hemming cloth 98 to the lower edge portion of the felt material 33 . If the cloth feeding speed of stitching sewing machine 6,6 is set to be slightly slower than the advancing speed of conveyer belt 26,110, because when utilizing the sewing machine 6 to sew the hemming cloth 98 by hand, the blanket material 33 leaves the sewing machine 6 less, so it is relatively fast. good.

In the sewing device of the present invention, two pieces of long blanket fabric, especially stretchable longitudinal knitted blanket fabric, are continuously aligned and superimposed with the same tension force, and the fabric edges on both sides of the blanket fabric are continuously sewed. The vertical hemming fabric can be sewed correctly and linearly regardless of the sewing machine's proficiency. If the device of the present invention is used, the sewing operation system of the two longitudinal hemming cloths of the long longitudinal knitted blanket cloth is automatically carried out, and the longitudinal hemming cloth can be correctly sewed on both sides of the blanket cloth, and the longitudinal hemming cloth can be greatly improved at the same time. Efficiency in hemming fabric sewing operations. In terms of the device of the present invention, the two cloth tracking platforms for replenishing the longitudinally knitted blanket cloth are both movable. As a result, the two blanket cloths can always be correctly aligned with the flanges. The flanges of the piece of blanket fabric are not perfectly aligned causing the problem of defective products.

In addition, the sewing device of the present invention cuts the felt fabric at right angles to a felt material of a predetermined size from the long longitudinally knitted felt fabric after generally stacking two pieces and sewing the longitudinal hemming fabric on both sides of the selvedge. It is almost automatically conveyed from the hemming cloth sewing machine to the sewing machine. This longitudinally knitted blanket fabric cannot be restored to its original shape if it is stretched horizontally before the hemming cloth is sewn on the horizontal selvage, so it is easy to damage the shape, so before the upper and lower selvedges of the blanket fabric are sewn to the horizontal hemming cloth, it is not necessary to use human hands. It is ideal to move. If the sewing device of the present invention is used, there is no need to manually move the longitudinally-knitted blanket fabric during the sewing operation of the horizontal hemming fabric, and blankets of approximately the same size can always be produced, thereby reducing the occurrence of defective products. In terms of the sewing device of the present invention, after cutting the long longitudinally knitted blanket fabric at right angles into each blanket material, the upper and lower edges of the blanket material are arranged neatly toward the sewing machine, and the horizontal hemming cloth is automatically fed into the fabric. edge to sew. Therefore, where manpower is required for the stitching of the horizontal hemming cloth, only the process of adjusting the position of the upper and lower selvedges of the felt material so that it is sent to the sewing machine along the guide plate, so that the manufacturing efficiency of the longitudinal knitted blanket can be improved more than in the past. . Moreover, the device used in the method of the present invention requires power consumption only for the driving of the conveyor belt and the sewing machine, so the running cost is low. Because the transverse edge of the longitudinally knitted felt fabric does not need to be heated, the stretchability of the felt can be maintained, and the obtained The woven blanket keeps the premium skin feel like acrylic pile.

Claims (7)

1, a kind of long-haired blanket cloth material and the length of severing sent for stipulating, simultaneously edge-covering cloth is sewn to the left and right sides selvedge of this woollen blanket cloth and the method for sewing of the woollen blanket on the selvedge up and down respectively, it is characterized in that, allow long-haired blanket cloth material move continuously on one side, adjust the lateral attitude on one side, under the state that this woollen blanket cloth is advanced towards horizontal direction, make the edge-covering cloth of left and right sides selvedge make it the crooked selvedge place, the left and right sides that sends into the woollen blanket cloth on one side in length direction central authorities respectively on one side with band, make edge-covering cloth coat woollen blanket cloth selvedge as vertical edge-covering cloth, do the stitching of linearity simultaneously with band.

2, the method for sewing of woollen blanket as claimed in claim 1, it is characterized in that, when two length of a film woollen blanket clothes are sent respectively, two length of a film straight-stitching blanket clothes are advanced continuously on one side, adjust the lateral attitude on one side, make it superimposed fully, under the woollen blanket cloth horizontal direction travel condition after superimposed, the limit makes edge-covering cloth send into selvedge place, the left and right sides on length direction central bend limit respectively with band.

3, a kind of two length of a film woollen blanket clothes are sent into respectively and superimposed, with the length of superimposed woollen blanket cloth severing for regulation, simultaneously, edge-covering cloth is sewn to the left and right sides selvedge of this woollen blanket cloth and the method for sewing of the woollen blanket on the selvedge up and down respectively, it is characterized in that, by becoming blanket material that the fabrics of layered blanket cloth of specific length constituted to laterally passing on by severing, the selvedge up and down that makes this blanket material when transporting is with to pass on the direct of travel of conveyer belt parallel, and make edge-covering cloth with band edge length direction central bend limit send into this blanket material on or following selvedge place, make edge-covering cloth with the selvedge of band, do the stitching of linearity simultaneously as horizontal edge-covering cloth coating blanket material.

4, the method for sewing of the woollen blanket shown in claim 3, it is characterized in that, along edge-covering cloth with band horizontal edge-covering cloth linearity is sewn on the blanket material or under selvedge on, and then blanket material is done after the 180 degree counter-rotatings, horizontal edge-covering cloth linearity is sewn on another remaining selvedge with band along edge-covering cloth, it is fast slightly that the belt gait of march of conveyer belt of will passing on this moment is limited to the work feed speed that this each edge-covering cloth sews up Sewing machines.

5, the woollen blanket apparatus for sewing of a kind of enforcement method according to claim 1, comprise: the mechanism that long-haired blanket cloth material is sent continuously, on the selvedge of the left and right sides of this woollen blanket cloth, sew up the mechanism of edge-covering cloth respectively, long-haired blanket cloth material is cut into the blanket material of specific length and the mechanism that sends, and edge-covering cloth is sewn to mechanism on the selvedge up and down of this woollen blanket cloth respectively, it is characterized in that, also comprise: cloth transporter and this cloth transporter disposed adjacent that long-haired blanket cloth material is advanced, and with the transportable quilting station of direction of the direct of travel quadrature of woollen blanket cloth, the edge-covering cloth that is installed on these quilting station both sides is respectively sewed up Sewing machines, and the tortuous guide member that edge-covering cloth is caused close sewing needle position with band from the guiding of band tube, during the woollen blanket cloth navigates on tortuous guide member, edge-covering cloth is sewn on the left and right sides selvedge of woollen blanket cloth with the stitching Sewing machines with band.

6, woollen blanket apparatus for sewing as claimed in claim 5, it is characterized in that, rear at the cloth transporter, the cloth that carries two length of a film woollen blanket clothes respectively is set follows the trail of platform, this cloth is followed the trail of platform and can be moved in the direction with woollen blanket cloth direct of travel quadrature, and utilize the photoelectric tube that is installed on the cloth transporter to control the lateral attitude, and utilize the edge detector that is arranged at the quilting station both sides respectively to control the lateral attitude of this quilting station.

7, a kind of woollen blanket apparatus for sewing of implementing as the method as described in the claim 3, comprise: the mechanism that sends long-haired blanket cloth material continuously, on the selvedge of the left and right sides of this woollen blanket cloth, sew up the mechanism of edge-covering cloth respectively, long-haired blanket cloth material is cut into the blanket material of specific length and the mechanism that sends, and edge-covering cloth is sewn to mechanism on the selvedge up and down of this woollen blanket cloth respectively, it is characterized in that, also comprise: the shearing device that long-haired blanket cloth material is cut into certain-length, transport conveyer belt with what the blanket material of severing was sent, this transport lower horizontal configuration of conveyer belt and can move forward and backward shake off conveyer belt, be positioned at this forward travel state the below of shaking off conveyer belt and with transport the conveyer belt that passes on that conveyer belt becomes orthogonal configuration, be disposed at and pass on the belt of conveyer belt edge-covering cloth one-sided or bilateral and sew up Sewing machines, and edge-covering cloth is guided to each edge-covering cloth with band with band tube sew up near the sewing needle of Sewing machines tortuous guide member, at described blanket material by when the tortuous guide member, with Sewing machines with edge-covering cloth with on the selvedge up and down that is combined in blanket material with seam.

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