CN114250550A - Doubling-up sewing device and doubling-up sewing method - Google Patents
Doubling-up sewing device and doubling-up sewing method Download PDFInfo
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- CN114250550A CN114250550A CN202111392398.4A CN202111392398A CN114250550A CN 114250550 A CN114250550 A CN 114250550A CN 202111392398 A CN202111392398 A CN 202111392398A CN 114250550 A CN114250550 A CN 114250550A
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B35/00—Work-feeding or -handling elements not otherwise provided for
- D05B35/08—Work-feeding or -handling elements not otherwise provided for for ruching, gathering, casing, or filling lace, ribbons, or bindings; Pleating devices; Cuttlers; Gathering feet; Crimpers; Curlers; Rufflers
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Abstract
A half-folding sewing device and a half-folding sewing method. The folding and sewing device comprises a workbench, a mop device, a sewing machine and a mandril; the sewing machine is arranged on the workbench; the ejector rod is arranged on the front side of the sewing machine, and one end of the ejector rod extends out of the side of the sewing machine to form an extending end; the extending end of the ejector rod is provided with a guide part for the cloth to slide; the mop device is arranged at the rear side of the sewing machine, and one end of the mop device extends out of the side of the sewing machine. The invention can finish the refitting of the doubling-up sewing device by respectively installing the ejector rod and the mop device at the front end and the rear end of the workbench of the existing sewing machine, and can save the cost. The second roll shaft can be lifted away from the first roll shaft, so that cloth can be conveniently put in. The pressure of the second roll shaft on the first roll shaft can be adjusted by sliding the weight block on the suspension frame. The guiding part can reduce the friction between the ejector rod and the cloth. The conveying speed of the mop device is changed according to the starting speed of the sewing machine to realize the synchronization of conveying and sewing.
Description
Technical Field
The invention relates to the field of sewing machines, in particular to a half-folding sewing device and a half-folding sewing method.
Background
At present, many products need to be made of cylindrical cloth. The cylindrical cloth is formed by folding the middle of the cloth in half and sewing the two aligned ends together. When the cloth is sewn by a common sewing machine, the cloth needs to be aligned and pushed ceaselessly, and the labor intensity is high. The automatic doubling-up sewing machine which appears on the market at present can automatically double up the cloth and then sew the cloth, and is suitable for large factories which produce the cloth in large quantities; for some small plants with smaller batches but widely distributed, the cost of the equipment is higher. The existing automatic doubling-up sewing machine has a complex operation method and higher requirements on the quality of operators.
Disclosure of Invention
The invention aims to overcome the defects and provide a doubling-up sewing device which is low in cost and can be modified by using the existing sewing machine.
In order to achieve the purpose, the technical solution of the invention is as follows: a folding sewing device comprises a workbench, a mop device, a sewing machine and a mandril; the sewing machine is arranged on the workbench;
the ejector rod is arranged on the front side of the sewing machine, and one end of the ejector rod extends out of the side of the sewing machine to form an extending end; the extending end of the ejector rod is provided with a guide part for the cloth to slide;
the mop device is arranged at the rear side of the sewing machine, and one end of the mop device extends out of the side of the sewing machine; the mop device comprises a roller frame, a first roller shaft and a second roller shaft, wherein the first roller shaft and the second roller shaft are arranged on the roller frame, the second roller shaft can be movably arranged above the first roller shaft up and down, and the second roller shaft can be moved up and down to leave or press the first roller shaft.
The workbench and the sewing machine can be the workbench and the sewing machine of the existing sewing machine; the ejector rod is arranged at the front part of the workbench, after the cloth is folded from the middle part, the ejector rod can push against the folded position at the middle part of the cloth, and the cloth can be folded under the action of the ejector rod when pulled by the mop device. The cloth can need slide just to make the both sides of cloth align by the in-process of pulling fifty percent discount sewing, and the frictional force of the fifty percent discount position of the reducible cloth of guide part and ejector pin, the workman carries out both sides alignment at the pulling cloth and makes laborsaving more. And the ejector rod can be arranged into a structure capable of being adjusted leftwards and rightwards, so that the position of the ejector rod can be adjusted according to the width of the cloth, and the middle part of the cloth can be propped by the ejector rod. And the mop device is arranged at the rear part of the workbench and used for dragging the cloth to move backwards, so that the sewing work can be continuously carried out, and workers only need to align the two sides of the cloth. During sewing, the second roller shaft can be lifted up firstly, so that the second roller shaft is separated from the first roller shaft, cloth is conveniently placed between the second roller shaft and the first roller shaft, and after the second roller shaft is placed, the cloth can be pressed on the first roller shaft by the second roller shaft to be conveyed.
Preferably, the guide part is one of a round ball, a round plate, a semicircular plate and a strip plate, wherein the round ball, the round plate and the semicircular plate are fixed at the end part of the ejector rod, and the strip plate is bent inwards at the front end and the rear end, or the guide part is one of a round ball and a round plate which are rotatably arranged at the end part of the ejector rod. The guide part not only needs to be favorable for conveying and sliding in the front-back direction of the cloth, but also needs to be aligned and slid in the left-right direction, and the more labor is saved when the cloth slides on the guide part, the folding and sewing speed of the cloth can be improved. The guide parts with different shapes can be suitable for sliding of different fabrics. The thickness of the semicircular plate and the circular plate is 0.8-2 mm.
Preferably, the roller frame comprises a base, a lifting frame and a suspension frame; the first roll shaft is rotatably arranged on the base; the lifting frame is arranged on the base in a lifting mode, one end of the overhanging frame is fixed on the lifting frame, the other end of the overhanging frame is overhanging, the overhanging frame is overhanging above the first roller shaft, and the second roller shaft is rotatably arranged on the overhanging frame. The suspension frame and the lifting frame are fixed together, and the lifting frame can drive the first roll shaft on the suspension frame to lift. The second roller shaft is arranged on the overhanging frame, so that the outer ends of the second roller shaft and the second roller shaft are not closed, and the cloth can extend out from the side between the first roller shaft and the second roller shaft, so that the cloth processing machine can process wide cloth.
Preferably, the overhanging frame comprises a weight block and a slide rod, the slide rod overhangs above the first roll shaft, the weight block is slidably arranged on the slide rod, and a locking screw for locking the slide rod is arranged on the weight block. The overhanging frame is in an overhanging form, when the overhanging frame moves downwards along with the lifting frame, the second roll shaft presses the cloth on the first roll shaft, and the heavy object block moves on the overhanging frame to change the pressure of the second roll shaft on the first roll shaft. Especially when second roller and first roller all set up the rubber tyer and realize the transmission.
Preferably, the base is provided with a linear bearing, a tension spring screw rod, a tension spring and a telescopic cylinder for jacking the lifting frame; the lifting frame is provided with a guide rod and a roller shaft motor used for driving the second roller shaft to rotate, the guide rod is sleeved in the linear bearing, the tension spring screw rod is provided with a tension spring seat and an adjusting nut used for adjusting the position of the tension spring seat, and two ends of the tension spring are respectively connected with the tension spring seat and the lifting frame. The base comprises a side seat and an underframe, the underframe is fixed on the workbench, the side seat is arranged at one end of the underframe, and the side frame extends out of the rear side of the underframe; the roller motor is arranged below the side seat, one end of the overhanging frame is arranged above the side seat, and the roller motor and the second roller are driven by a toothed belt.
Preferably, the device also comprises a speed regulating device, wherein the speed regulating device comprises a rocker seat, a rocker, a first connecting rod, a first sensor, a second sensor and a controller for controlling the rotating speed of the roller shaft motor, the middle part of the rocker is rotatably arranged on the rocker seat, the first sensor and the second sensor are arranged opposite to one end of the rocker, one end of the rocker can trigger the first sensor or the second sensor through approaching, and the first sensor and the second sensor are both connected with the controller; be equipped with on the base and be used for driving first roller pivoted roller motor, the below of workstation is equipped with the footboard that is used for controlling sewing machine sewing speed, and the other end of footboard and rocker is articulated respectively at the both ends of first connecting rod.
First sensor and second sensor are proximity sensor, when the footboard was stepped on, triggered first sensor earlier, and controller control roller motor drive second roller low-speed rotates, just coordinates the slow speed when sewing machine's the start-up, and when the footboard continued to rotate, triggered the second sensor, and controller control roller motor drive second roller high-speed rotates, and the mop speed of mop device can be synchronous with sewing machine's sewing speed.
Preferably, the first roller shaft comprises a first shaft body and two first rubber wheels slidably arranged on the first shaft body, the second roller shaft comprises a second shaft body and two second rubber wheels slidably arranged on the second shaft body, and the two second rubber wheels are respectively arranged at positions opposite to the two first rubber wheels. The first roller shaft and the second roller shaft press the cloth through the first rubber wheel and the second rubber wheel to realize dragging of the cloth, and the friction force of the rubber wheels on the cloth is large, so that the cloth is prevented from slipping during conveying.
Preferably, the device also comprises a top rod frame, the top rod frame is used for being fixed at the front part of the workbench, the top rod can be arranged on the top rod frame in a left-right moving mode, and a top rod screw used for locking the top rod is arranged on the top rod frame; the roller frame comprises a base, a side seat, a second connecting rod and a third connecting rod, wherein the base and the side seat are fixed on a workbench, two ends of a first roller shaft are rotatably arranged on the base and the side seat respectively, a roller shaft motor used for driving the first roller shaft to rotate is arranged on the base, two ends of the second connecting rod are hinged with one ends of the base and the second roller shaft respectively, two ends of the third connecting rod are hinged with the other ends of the side seat and the second roller shaft respectively, and a handle is arranged on the second connecting rod or the third connecting rod. The ejector rod can control the extending distance of the end part of the ejector rod by moving left and right so as to adapt to the folding and sewing of the cloth with different widths. The second roller shaft can be lifted away from the first roller shaft by grasping the handle and lifting the handle upwards.
A double-over sewing method, comprising:
folding one end of the cloth from the middle part, aligning two sides of the folded part of the cloth, and sewing the two sides of the folded part together by using a sewing machine to form an initial sewing part;
lifting the second roller shaft, placing the end part of the fabric initial seam part between the second roller shaft and the first roller shaft, and pressing the fabric on the first roller shaft by the second roller shaft;
moving the ejector rod to enable the end part of the ejector rod to prop against the middle part of the cloth from the inner side, pulling two sides of the cloth to enable the two sides of the cloth to be aligned with the position of a presser foot of the sewing machine, locking the ejector rod to enable the ejector rod not to move, wherein the end part of the ejector rod is provided with a guide part for the cloth to slide, the guide part is one of a round ball, a round plate, a semicircular plate and a strip plate which are fixed at the end part of the ejector rod and are both bent inwards at the front end and the rear end or the guide part is one of a round ball and a round plate which are rotatably arranged at the end part of the ejector rod;
the sewing machine is started by rotating the pedal, the first sensor is triggered and sends a first signal after the pedal rotates to a first angle, and the controller receives the first signal and then controls the first roller shaft or the second roller shaft to rotate at a first speed; after the pedal rotates to a second angle, the second sensor is triggered and sends a second signal, and the controller receives the second signal and controls the first roller shaft or the second roller shaft to rotate at a second speed;
when the sewing machine sews, one side of the cloth is pulled to align with the other side of the cloth and the cloth is simultaneously sent to the sewing machine for sewing.
Preferably, the method further comprises: the pressure of second roller to first roller is adjusted until the cloth is stably carried by first roller and second roller, and the rotatable setting of second roller is on the overhanging frame in first roller top, and the overhanging frame is equipped with slidable heavy thing piece, and the adjustable second roller of slide heavy thing piece is to the pressure of first roller.
By adopting the technical scheme, the invention has the beneficial effects that: the invention can finish the refitting of the doubling-up sewing device by respectively installing the ejector rod and the mop device at the front end and the rear end of the workbench of the existing sewing machine, and can save the cost. The second roll shaft can be lifted away from the first roll shaft, so that cloth can be conveniently put in. The pressure of the second roll shaft on the first roll shaft can be adjusted by sliding the weight block on the suspension frame. The guiding part can reduce the friction between the ejector rod and the cloth. The conveying speed of the mop device is changed according to the starting speed of the sewing machine to realize the synchronization of conveying and sewing.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic view showing the structure of the mopping device of embodiment 1;
FIG. 3 is a partial schematic view showing the structure of the mop device according to embodiment 1;
FIG. 4 is a schematic structural view of a crane and a boom in example 1;
FIG. 5 is a schematic structural view of a base according to embodiment 1;
FIG. 6 is a schematic structural diagram of the governor device of the present invention;
FIG. 7 is a schematic structural view of a jack rod according to embodiment 1;
FIG. 8 is a schematic structural view of example 2;
FIG. 9 is another schematic view of the structure of example 2;
FIG. 10 shows the top bar with the guiding part being a round ball;
FIG. 11 shows the lift pins with the guide part being a circular plate;
FIG. 12 is a top bar of a slat with a guiding part having both front and rear ends bent inward;
fig. 13 shows the lift pin when the guide portion is a semicircular plate.
Description of the main reference numerals:
a mop device 1; a first roller shaft 11; a first shaft body 111; a first rubber wheel 112; a second roll shaft 12; a second shaft body 121; a second rubber wheel 122; a roller frame 13; a base 131; a tension spring screw 1311; a tension spring seat 1312; an adjusting nut 1313; a linear bearing 1314; a telescopic cylinder 14; a tension spring 15; a roll shaft motor 16; a heavy matter block 17; a locking screw 171; a lifting frame 132; a guide rod 1321; a suspension bracket 133; a slide bar 1331; a side seat 191; a second link 192; a third link 193; a handle 194; a top rod 2; a carrier rod body 21; a recess 211; a guide portion 22; a guide portion rotating shaft 23; a work table 3; a sewing machine 4; a jack-post frame 5; a pedal 61; a first link 62; a rocker 64; a rocker base 65; a first sensor 65; a second sensor 66; a controller 67; and (7) a cloth.
Detailed Description
The invention is further described below with reference to the figures and the specific embodiments.
Example 1:
as shown in fig. 1-7, the doubling-up sewing device of the invention comprises a workbench 3, a mop device 1, a sewing machine 4, a mandril 2 and a mandril frame 5. The sewing machine 4 is provided on the table 3 for sewing a cloth.
As shown in fig. 1 and 7, the top bar 2 is arranged at the front side of the sewing machine 4, and one end of the top bar 2 extends out from the side of the sewing machine to form a protruding end; the extending end of the mandril 2 is provided with a guide part 22 for the cloth 7 to slide. The ejector rod 2 comprises an ejector rod body 21, a guide part rotating shaft 23 and a guide part 22; the rotating shaft of the guide part is arranged at the end part of the ejector rod body, and the rotating shaft 23 of the guide part and the ejector rod body 21 form an included angle of 90-180 degrees. The guiding portion 22 is a spherical ball, and the guiding portion 22 is rotatably disposed on the guiding portion rotating shaft. The ejector rod frame 5 is fixed at the front part of the workbench 3, the ejector rod 2 can move left and right and is arranged on the ejector rod frame 5, and an ejector rod screw for locking the ejector rod 2 is arranged on the ejector rod frame 5.
The mop device 1 is arranged at the rear side of the sewing machine 4, and one end of the mop device 4 extends out of the side of the sewing machine 4; the mop device 4 comprises a roller frame 13, a first roller shaft 11 and a second roller shaft 12 which are arranged on the roller frame 13, the second roller shaft 12 can be movably arranged above the first roller shaft 11 up and down, and the second roller shaft 12 can be moved up and down to leave or press the first roller shaft 11.
The roller frame 13 includes a base 131, a lifting frame 132, and a suspension frame 133. The first roller shaft 11 is rotatably arranged on the base 131; the lifting frame 132 is arranged on the base 131 in a lifting manner, one end of the overhanging frame 133 is fixed on the lifting frame 132, the other end of the overhanging frame 133 overhangs, the overhanging frame 133 overhangs above the first roll shaft 11, and the second roll shaft 12 is rotatably arranged on the overhanging frame 133. As shown in fig. 4, the suspension bracket 133 includes a weight block 17 and a slide bar 1331, the slide bar 1331 is suspended above the first roller shaft 11 and the second roller shaft 12, the slide bar 1331 is correspondingly disposed along the second roller shaft 12, the weight block 17 is slidably disposed on the slide bar 1331, and a locking screw 171 for locking the slide bar 1331 is disposed on the weight block 17. The movement of the weight block 17 deforms the overhanging portion of the overhanging frame 133 to change the downward pressure of the second roller 12 against the first roller 11.
As shown in fig. 2, 4 and 5, the first roller shaft 11 includes a first shaft body 111 and two first rubber wheels 112 slidably disposed on the first shaft body 111, the second roller shaft 12 includes a second shaft body 121 and two second rubber wheels 122 slidably disposed on the second shaft body 121, and the two second rubber wheels 122 are disposed at positions opposite to the two first rubber wheels 112, respectively. The first rubber wheel 112 and the second rubber wheel 122 are rubber wheels or silicon rubber wheels, and are not easy to slip when the cloth is conveyed. For the cloth of different materials or sizes, the best dragging effect can be achieved by moving the first rubber wheel 112 and the second rubber wheel 122 to change the positions of the first roller shaft and the second roller shaft for pressing the cloth.
As shown in fig. 2-5, the base 131 is provided with a linear bearing 1314, a tension spring screw 1311, a tension spring 15 and a telescopic cylinder 14 for lifting up and lifting down. The lifting frame 132 is provided with a guide rod 1321 and a roller shaft motor 16 for driving the second roller shaft 12 to rotate, and the roller shaft motor 16 is in transmission connection with the second roller shaft 12 through a toothed belt. The guide rod 1321 is inserted into the linear bearing 1314 to guide the lifting of the lifting base 132. The tension spring screw 1311 is provided with a tension spring seat 1312 and two adjusting nuts 1313 for adjusting the position of the tension spring seat, the number of the adjusting nuts 1313 is two, the two adjusting nuts 1313 are respectively arranged on the upper side and the lower side of the tension spring seat 1312, and the two adjusting nuts 1313 are in threaded fit with the tension spring screw 1311. Two ends of the tension spring 15 are respectively connected with the tension spring seat 1312 and the lifting frame 132, the tension spring 15 is used for pulling down the lifting frame 132 to reset, so that the second roller shaft 12 presses the cloth on the first roller shaft 11 for conveying. Adjusting the position of the tension spring seat 1312 adjusts the tension of the tension spring 15 and the pressure of the second roller shaft 12 on the first roller shaft 11.
The doubling-up sewing device further comprises a speed regulating device, wherein the speed regulating device comprises a rocker seat 64, a rocker 63, a first connecting rod 62, a first sensor 65, a second sensor 66 and a controller 67 for controlling the rotating speed of the roller shaft motor 16. The middle part of the rocker 63 is rotatably arranged on a rocker seat 64, the rocker seat 64 can be fixed at the bottom of the workbench, a first sensor 65 and a second sensor 66 are arranged opposite to one end of the rocker 63, and one end of the rocker 63 can trigger the first sensor or the second sensor by being close to the first sensor or the second sensor. The first sensor 65 and the second sensor 66 are both connected to the controller. A pedal 61 for controlling the sewing speed of the sewing machine 4 is arranged below the working table 3, and two ends of the first connecting rod 62 are respectively hinged with the pedal 61 and the other end of the rocker 63.
A double-over sewing method, comprising:
folding one end of the cloth from the middle part, aligning two sides of the folded part of the cloth, and sewing the two sides of the folded part together by using a sewing machine to form an initial sewing part;
lifting the second roller shaft, placing the end part of the fabric initial seam part between the second roller shaft and the first roller shaft, and pressing the fabric on the first roller shaft by the second roller shaft;
moving the ejector rod to enable the end part of the ejector rod to prop against the middle part of the cloth from the inner side, pulling two sides of the cloth to enable the two sides of the cloth to be aligned with the position of a presser foot of the sewing machine, locking the ejector rod to enable the ejector rod not to move, wherein the end part of the ejector rod is provided with a guide part for the cloth to slide, the guide part is one of a round ball, a round plate, a semicircular plate and a strip plate which are fixed at the end part of the ejector rod and are both bent inwards at the front end and the rear end or the guide part is one of a round ball and a round plate which are rotatably arranged at the end part of the ejector rod;
the sewing machine is started by rotating the pedal, the first sensor is triggered and sends a first signal after the pedal rotates to a first angle, and the controller receives the first signal and then controls the first roller shaft or the second roller shaft to rotate at a first speed; after the pedal rotates to a second angle, the second sensor is triggered and sends a second signal, and the controller receives the second signal and controls the first roller shaft or the second roller shaft to rotate at a second speed;
when the sewing machine sews, one side of the cloth is pulled to align with the other side of the cloth and the cloth is simultaneously sent to the sewing machine for sewing.
The pressure of second roller to first roller is adjusted until the cloth is stably carried by first roller and second roller, and the rotatable setting of second roller is on the overhanging frame in first roller top, and the overhanging frame is equipped with slidable heavy thing piece, and the adjustable second roller of slide heavy thing piece is to the pressure of first roller.
Example 2:
as shown in fig. 8-9, the doubling-up sewing device of the invention comprises a workbench 3, a mop device 1, a sewing machine 4, a mandril 2 and a mandril frame 5. The sewing machine 4 is provided on the table 3 for sewing a cloth.
The ejector rod 2 is arranged at the front side of the sewing machine 4, and one end of the ejector rod 2 extends out from the side of the sewing machine to form an extending end; the extending end of the mandril 2 is provided with a guide part 22 for the cloth 7 to slide.
The mop device 1 is arranged at the rear side of the sewing machine 4, and one end of the mop device 4 extends out of the side of the sewing machine 4; the mop device 4 comprises a roller frame 13, a first roller shaft 11 and a second roller shaft 12 which are arranged on the roller frame 13, the second roller shaft 12 can be movably arranged above the first roller shaft 11 up and down, and the second roller shaft 12 can be moved up and down to leave or press the first roller shaft 11.
As shown in fig. 10, the guide part is a spherical ball fixed to the end of the rod 2.
As shown in fig. 11, the guiding portion can rotate the disc 22 disposed on the end of the top bar 2, the end of the top bar is provided with a groove 211, and the rotating shaft of the disc 22 is disposed in the groove 211.
As shown in fig. 10, the guide portion is a strip plate fixed to the end of the carrier rod and bent inward at both front and rear ends.
As shown in fig. 10, the guide portion is a semicircular plate fixed to the end of the jack.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, and all equivalent variations and modifications made in the claims of the present invention should be included in the scope of the present invention.
Claims (10)
1. A folding sewing device is characterized by comprising a workbench, a mop device, a sewing machine and a mandril; the sewing machine is arranged on the workbench;
the ejector rod is arranged on the front side of the sewing machine, and one end of the ejector rod extends out of the side of the sewing machine to form an extending end; the extending end of the ejector rod is provided with a guide part for the cloth to slide;
the mop device is arranged at the rear side of the sewing machine, and one end of the mop device extends out of the side of the sewing machine; the mop device comprises a roller frame, a first roller shaft and a second roller shaft, wherein the first roller shaft and the second roller shaft are arranged on the roller frame, the second roller shaft can be movably arranged above the first roller shaft up and down, and the second roller shaft can be moved up and down to leave or press the first roller shaft.
2. The double-over sewing machine as claimed in claim 1, wherein the guiding part is one of a ball, a circular plate, a semicircular plate, a strip plate with both front and rear ends bent inward, or one of a ball and a circular plate rotatably mounted on the end of the rod.
3. The double-over sewing device according to claim 1, wherein the roller frame comprises a base, a lifting frame and a suspension frame; the first roll shaft is rotatably arranged on the base; the lifting frame is arranged on the base in a lifting mode, one end of the overhanging frame is fixed on the lifting frame, the other end of the overhanging frame is overhanging, the overhanging frame is overhanging above the first roller shaft, and the second roller shaft is rotatably arranged on the overhanging frame.
4. The center-folding sewing machine according to claim 3, wherein the overhanging frame comprises a weight block and a slide bar, the slide bar overhangs the first roller shaft, the weight block is slidably disposed on the slide bar, and a locking screw for locking the slide bar is disposed on the weight block.
5. The doubling sewing device of claim 3, wherein the base is provided with a linear bearing, a tension spring screw, a tension spring and a telescopic cylinder for jacking the lifting frame; the lifting frame is provided with a guide rod and a roller shaft motor used for driving the second roller shaft to rotate, the guide rod is sleeved in the linear bearing, the tension spring screw rod is provided with a tension spring seat and an adjusting nut used for adjusting the position of the tension spring seat, and two ends of the tension spring are respectively connected with the tension spring seat and the lifting frame.
6. The doubling-up sewing device according to claim 1, further comprising a speed adjusting device, wherein the speed adjusting device comprises a rocker seat, a rocker, a first connecting rod, a first sensor, a second sensor and a controller for controlling the rotating speed of a roller shaft motor, the middle part of the rocker is rotatably arranged on the rocker seat, the first sensor and the second sensor are arranged opposite to one end of the rocker, one end of the rocker can trigger the first sensor or the second sensor through being close to the first sensor or the second sensor, and the first sensor and the second sensor are both connected with the controller; be equipped with on the base and be used for driving first roller pivoted roller motor, the below of workstation is equipped with the footboard that is used for controlling sewing machine sewing speed, and the other end of footboard and rocker is articulated respectively at the both ends of first connecting rod.
7. The apparatus of claim 1, wherein the first roller comprises a first shaft and two first rubber wheels slidably disposed on the first shaft, and the second roller comprises a second shaft and two second rubber wheels slidably disposed on the second shaft, the two second rubber wheels being disposed opposite to the two first rubber wheels, respectively.
8. The doubling sewing device according to claim 1, further comprising a top bar frame, wherein the top bar frame is used for being fixed at the front part of the workbench, the top bar can be arranged on the top bar frame in a left-right moving manner, and a top bar screw for locking the top bar is arranged on the top bar frame; the roller frame comprises a base, a side seat, a second connecting rod and a third connecting rod, wherein the base and the side seat are fixed on a workbench, two ends of a first roller shaft are rotatably arranged on the base and the side seat respectively, a roller shaft motor used for driving the first roller shaft to rotate is arranged on the base, two ends of the second connecting rod are hinged with one ends of the base and the second roller shaft respectively, two ends of the third connecting rod are hinged with the other ends of the side seat and the second roller shaft respectively, and a handle is arranged on the second connecting rod or the third connecting rod.
9. A double-over sewing method is characterized by comprising the following steps:
folding one end of the cloth from the middle part, aligning two sides of the folded part of the cloth, and sewing the two sides of the folded part together by using a sewing machine to form an initial sewing part;
lifting the second roller shaft, placing the end part of the fabric initial seam part between the second roller shaft and the first roller shaft, and pressing the fabric on the first roller shaft by the second roller shaft;
moving the ejector rod to enable the end part of the ejector rod to prop against the middle part of the cloth from the inner side, pulling two sides of the cloth to enable the two sides of the cloth to be aligned with the position of a presser foot of the sewing machine, locking the ejector rod to enable the ejector rod not to move, wherein the end part of the ejector rod is provided with a guide part for the cloth to slide, the guide part is one of a round ball, a round plate, a semicircular plate and a strip plate which are fixed at the end part of the ejector rod and are both bent inwards at the front end and the rear end or the guide part is one of a round ball and a round plate which are rotatably arranged at the end part of the ejector rod;
the sewing machine is started by rotating the pedal, the first sensor is triggered and sends a first signal after the pedal rotates to a first angle, and the controller receives the first signal and then controls the first roller shaft or the second roller shaft to rotate at a first speed; after the pedal rotates to a second angle, the second sensor is triggered and sends a second signal, and the controller receives the second signal and controls the first roller shaft or the second roller shaft to rotate at a second speed;
when the sewing machine sews, one side of the cloth is pulled to align with the other side of the cloth and the cloth is simultaneously sent to the sewing machine for sewing.
10. The double-over sewing method of claim 9, further comprising:
the pressure of second roller to first roller is adjusted until the cloth is stably carried by first roller and second roller, and the rotatable setting of second roller is on the overhanging frame in first roller top, and the overhanging frame is equipped with slidable heavy thing piece, and the adjustable second roller of slide heavy thing piece is to the pressure of first roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111392398.4A CN114250550B (en) | 2021-11-19 | 2021-11-19 | Folding sewing device and folding sewing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111392398.4A CN114250550B (en) | 2021-11-19 | 2021-11-19 | Folding sewing device and folding sewing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114250550A true CN114250550A (en) | 2022-03-29 |
| CN114250550B CN114250550B (en) | 2023-04-25 |
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| JP2001070679A (en) * | 1999-09-02 | 2001-03-21 | Yoshihiro Matsuoka | Curtain sewing system |
| CN203346615U (en) * | 2013-07-01 | 2013-12-18 | 泉州市中缝针车城有限责任公司 | Cloth pulling device of sewing machine |
| CN212152665U (en) * | 2020-03-30 | 2020-12-15 | 绍兴柯桥阮发贸易股份有限公司 | Sewing device for all-cotton knitted printed cloth |
| CN112281318A (en) * | 2020-09-06 | 2021-01-29 | 广州喜登堡床垫机械有限公司 | Sewing machine for double-layer mattress side |
| CN212771303U (en) * | 2020-08-11 | 2021-03-23 | 舒普林印染有限公司 | Hemming machine |
| CN213538343U (en) * | 2020-11-07 | 2021-06-25 | 烟台明远创意生活科技股份有限公司 | Cloth pulling device of sewing machine |
| CN214529612U (en) * | 2021-04-14 | 2021-10-29 | 桐乡市亿曦针织品有限公司 | Rib knitting machine for producing knitted rib fabric |
| CN216514538U (en) * | 2021-11-19 | 2022-05-13 | 石狮市重品机械设备制造有限公司 | Doubling-up sewing device |
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2021
- 2021-11-19 CN CN202111392398.4A patent/CN114250550B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001070679A (en) * | 1999-09-02 | 2001-03-21 | Yoshihiro Matsuoka | Curtain sewing system |
| CN203346615U (en) * | 2013-07-01 | 2013-12-18 | 泉州市中缝针车城有限责任公司 | Cloth pulling device of sewing machine |
| CN212152665U (en) * | 2020-03-30 | 2020-12-15 | 绍兴柯桥阮发贸易股份有限公司 | Sewing device for all-cotton knitted printed cloth |
| CN212771303U (en) * | 2020-08-11 | 2021-03-23 | 舒普林印染有限公司 | Hemming machine |
| CN112281318A (en) * | 2020-09-06 | 2021-01-29 | 广州喜登堡床垫机械有限公司 | Sewing machine for double-layer mattress side |
| CN213538343U (en) * | 2020-11-07 | 2021-06-25 | 烟台明远创意生活科技股份有限公司 | Cloth pulling device of sewing machine |
| CN214529612U (en) * | 2021-04-14 | 2021-10-29 | 桐乡市亿曦针织品有限公司 | Rib knitting machine for producing knitted rib fabric |
| CN216514538U (en) * | 2021-11-19 | 2022-05-13 | 石狮市重品机械设备制造有限公司 | Doubling-up sewing device |
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| CN114250550B (en) | 2023-04-25 |
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