阅读说明：本技术 纠偏缝边机 (Deviation-correcting hemming machine ) 是由 朱训 许道明 耿占锋 陈晓操 于 2019-11-22 设计创作，主要内容包括：本发明公开了纠偏缝边机,包括送巾机构、切割机构、夹巾传输机构以及折缝边机构,切割机构位于送巾机构与夹巾传输机构之间将长卷毛巾切割分片,夹巾传输机构将每片毛巾送至其后侧的缝边机构进行前后边部折缝,在切割机构的切刀后侧上方的机架上安装相机对着下方的长卷毛巾开剪段,用于拍摄开剪缝后侧毛圈前边位置,相机信号连接PLC,PLC接收信号计算该毛圈前边至开剪缝的距离,并传输信号给步进驱动器,步进驱动器信号控制步进电机转动,步进电机驱动连接夹巾传输机构的夹巾夹进行移位纠偏。本发明可以根据每片横切的毛巾前边平纹长短进行纠偏接巾,进而流转至下道折缝边时折边宽度统一,使每条毛巾缝边线都贴靠毛圈边,缝边整齐美观。(The invention discloses a deviation rectifying hemming machine which comprises a towel feeding mechanism, a cutting mechanism, a towel clamping transmission mechanism and a hemming mechanism, wherein the cutting mechanism is positioned between the towel feeding mechanism and the towel clamping transmission mechanism and is used for cutting and slicing a long roll of towels, the towel clamping transmission mechanism is used for feeding each towel to the hemming mechanism on the rear side of the towel clamping transmission mechanism for hemming the front edge and the rear edge, a frame above the rear side of a cutter of the cutting mechanism is provided with a long roll towel shearing section facing the lower side of the frame and used for shooting the front edge position of a looped pile on the rear side of the sheared edge, a camera signal is connected with a PLC (programmable logic controller), the PLC is used for receiving a signal and calculating the distance from the front edge of the looped pile to the sheared edge and transmitting the signal to a stepping driver, the stepping driver is used for controlling the stepping motor to rotate, and. The invention can carry out deviation rectification towel receiving according to the length of the plain weave in the front edge of each transversely cut towel, and further the folded edge width is uniform when the towel is transferred to the next folded edge, so that each towel edge sewing line is attached to the terry edge, and the sewn edge is neat and beautiful.)

1. Edge sewing machine rectifies, including sending piece of cloth mechanism (1), cutting mechanism (2), pressing from both sides piece of cloth transmission device (3) and hem mechanism, cutting mechanism (2) are located and send piece of cloth mechanism (1) and press from both sides between piece of cloth transmission device (3) with long a roll of towel cutting burst, press from both sides piece of cloth transmission device (3) and send every piece of towel to the hem mechanism of its rear side and carry out the hem of front and back limit portion hem, its characterized in that: still including rectifying mechanism, rectifying mechanism includes camera (41), PLC (42), step driver (43) and step motor (44), camera (41) are installed and are being opened the section of cutting at the long roll towel of below facing to in the frame of cutting mechanism's cutter (21) rear side top, a position in front of the back side looped pile of cutting for shooing, camera (41) signal connection PLC (42), distance A to opening the seam in front of this looped pile is calculated to PLC (42) received signal, and transmitted signal gives step driver (43), step driver (43) signal control step motor (44) rotate, step motor (44) drive connection presss from both sides towel clamp (31) of towel transmission mechanism and shifts to rectify.

2. The deviation rectifying hemming machine according to claim 1 wherein: the utility model provides a stepping motor drives to change and connects the specific structure that the clamp piece of pressing from both sides piece of cloth transport mechanism carries out the aversion and rectify a deviation, driving wheel (45) of fixed suit on stepping motor (44) output shaft, with worm (46) go up driven wheel (47) transmission connection of fixed suit, worm (46) one side is equipped with ejector pin (48) side by side, worm (46) are connected with worm wheel (49) transmission that the fixed cup joint on the ejector pin, ejector pin (48) front end butt aversion riser (40), aversion riser (40) top and clamp piece of cloth press from both sides installation diaphragm (32) fixed connection.

3. The deviation rectifying hemming machine according to claim 2 wherein: the front end of the ejector rod (48) is provided with an elastic buffer (5).

4. The deviation rectifying hemming machine according to claim 2 wherein: the avris of the shifting vertical plate (40) is provided with a guide sliding rail (6), and the shifting vertical plate (40) is connected to the guide sliding rail (6) in a sliding manner.

5. The deviation rectifying hemming machine according to claim 1 wherein: the camera (41) is a kirschner CV-X400A.

6. The deviation rectifying hemming machine according to claim 1 wherein: the PLC (42) is FX 3U-16M.

Technical Field

The invention relates to the field of sewing machinery, in particular to a deviation rectifying hemming machine.

Background

At present, in the process of weaving the towel, due to the expansion of weaving capacity, the towel is basically a whole width with more opening, then the towel is longitudinally cut to form a long roll with connected sheets, two long sides are sewn, then the long roll towel is transversely cut according to a preset cutting seam, and then two short sides are sewn. Because the lengths of plain weaving sections between the looped piles of two adjacent towels are different, original equipment adjusts the transverse cutting and sewing positions according to product specifications, after two adjacent towels are transversely cut, the lengths from the rear side of the looped pile of the front towel to the edge cutting are consistent, but the lengths from the front side of the looped pile of the rear towel to the edge cutting are inconsistent, and during subsequent folding operation, the edge folding reference position is unchanged, so that the edge sewing line or the looped pile edge is not reached, or the edge sewing line is over-sewn on the looped pile, and the edge sewing is not attractive and unqualified.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a deviation rectifying hemming machine for solving the problems.

In order to achieve the purpose, the invention provides the following technical scheme:

the edge sewing machine with the deviation correction function comprises a towel feeding mechanism, a cutting mechanism, a towel clamping transmission mechanism and a seam edge folding mechanism, wherein the cutting mechanism is positioned between the towel feeding mechanism and the towel clamping transmission mechanism and is used for cutting and separating long rolls of towels, the towel clamping transmission mechanism is used for conveying each towel to the seam edge sewing mechanism on the rear side of the towel feeding mechanism to perform front and rear edge folding, the edge sewing machine further comprises a camera, a Programmable Logic Controller (PLC), a step driver and a step motor, the camera is mounted on a rack above the rear side of a cutter of the cutting mechanism and is used for shooting the front edge position of a pile on the rear side of the cut seam, the camera is in signal connection with the PLC, the PLC receives signals to calculate the distance from the front edge to the cut seam, and transmits signals to the step driver, the step driver controls the step motor to rotate, and the step motor drives a towel clamp connected.

The invention further improves the technical scheme that a stepping motor drives to rotate and is connected with a towel clamping and conveying mechanism to carry out displacement deviation correction, wherein a driving wheel fixedly sleeved on an output shaft of the stepping motor is in transmission connection with a driven wheel fixedly sleeved on a worm, ejector rods are arranged on one side of the worm side by side, the worm is in transmission connection with a worm wheel fixedly sleeved on the ejector rods, the front ends of the ejector rods are abutted against displacement vertical plates, and the top ends of the displacement vertical plates are fixedly connected with a towel clamping and conveying mechanism mounting transverse plate. Step motor drive worm gear drives the flexible riser that promotes of ejector pin, and then realizes pressing from both sides the fine setting of towel clamp position, connects towel cutting operation before every time and rectifies a deviation, and this structure operation is stable, accurate.

The invention further improves the technical scheme that the front end of the ejector rod is provided with an elastic buffer. Prevent to remove position riser and clash the ejector pin.

According to a further improved technical scheme of the invention, a guide slide rail is arranged on the side of the shifting vertical plate, and the shifting vertical plate is connected to the guide slide rail in a sliding manner. The mobile vertical plate and the towel clamping clip have better mobile stability.

According to a further improved technical scheme of the invention, the camera is Ginzhi CV-X400A. The position of the loop edge shot by the camera is more accurate.

According to a further improved technical scheme of the invention, the PLC is FX 3U-16M.

The invention has the beneficial effects that:

according to the towel edge folding device, the looped pile position is shot by the camera, the PLC calculates the micro-movement distance of the towel clip, the stepping motor is controlled to rotate forwards and backwards through the stepping controller, so that the towel clip is driven to accurately shift and correct the deviation, the outer widths of the folded edges of towels are consistent when the folding mechanism is used, finally, the folding position of the edge of each transversely-cut towel reaches the qualified requirement of a product, and the edge sewing line is tightly attached to the looped pile edge, so that the towel edge folding device is neat and attractive.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic view of a partial driving structure according to the present invention;

FIG. 3 is a schematic diagram of signal transmission according to the present invention;

FIG. 4 is a schematic diagram illustrating the calculation of the length A according to the present invention.

Detailed Description

As shown in fig. 1 to 4, the present invention comprises a towel feeding mechanism 1, a cutting mechanism 2, a towel clamping transmission mechanism 3, and a hemming mechanism (not shown in the figure), wherein the cutting mechanism 2 is located between the towel feeding mechanism 1 and the towel clamping transmission mechanism 3 to cut and slice a long roll of towels, the towel clamping transmission mechanism 3 feeds each towel to the hemming mechanism at the rear side thereof for front and rear hem hemming, the arrangement of the mechanisms is the conventional technology of the current towel slitting and hemming machine, the present invention further comprises a deviation rectifying mechanism, the deviation rectifying mechanism comprises a camera 41 (kirschner CV-X400A), a PLC 42 (model FX 3U-16M), a stepping driver 43 (TB 6600) and a stepping motor 44 (57 HS 22), the camera 41 is installed on the machine frame above the rear side of the cutting knife 21 of the cutting mechanism and is opposite to the lower long roll towel slitting section for shooting the front edge position of the loops at the rear side of slitting, the camera 41 is in signal connection with the PLC 42, the PLC 42 receives signals to calculate the distance A from the front edge of the terry to the cut seam, and transmits signals to the step driver 43, the step driver 43 controls the step motor 44 to rotate by signals, the step motor 44 drives the towel clamping clamp 31 connected with the towel clamping transmission mechanism to shift and correct the deviation, the specific mechanical structure is that the driving wheel 45 fixedly sleeved on the output shaft of the step motor 44 is in transmission connection with a driven wheel 47 fixedly sleeved on a worm 46, a mandril 48 is arranged on one side of the worm 46 side by side, the elastic buffer 5 is installed at the front end of the mandril 48, the worm 46 is in transmission connection with a worm wheel 49 fixedly sleeved on the mandril, the front end of the mandril 48 is abutted against the shifting vertical plate 40, the top end of the shifting vertical plate 40 is fixedly connected with the towel clamping clamp installation transverse plate 32, the side of the shifting vertical plate 40.

The towel clamping clamp 31 extends out under the push of the telescopic cylinder to clamp the front edge of a long roll of towels delivered by the towel delivering mechanism, retracts and resets, the terry blocking device 7 at the rear side falls down, the towel delivering mechanism is pulled back to enable plain weaving sections between two adjacent towels to be tensioned and positioned, the camera 41 shoots and obtains the front edge position of the terry of the next towel, the distance between the front edge of the terry of the next towel and a preset base line is a, the distance between the base line and a cutting seam is b, the length A between the front edge of the terry of the next towel and the cutting seam is b +/-a through calculation of a PLC, when the edge position of the terry is at the rear side of the base line, A = b + a (see a picture in figure 4), when the edge position of the terry is at the front side of the base line, A = b-a (see a picture in figure 4), the PLC transmits a signal to the stepping driver 43, controls the stepping motor 44 or the counter-rotating push rod through the, the abutting displacement vertical plate 40 moves, so that the towel clamping clamp 31 is displaced, finely adjusted and corrected, and then conveyed to the next folding mechanism for operation, the outer width of the folded edge is consistent, and finally, the edge seaming line of each transversely cut towel edge is tightly attached to the terry edge, and the towel is neat and attractive. .

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 embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.