Fabric fixed-length flanging processing device
Technical Field
The invention relates to the technical field of belly pad production equipment, in particular to a fabric fixed-length flanging processing device.
Background
In the process of operation, the medical use needs to wipe the blood on the operation incision and the operation instrument with the belly pad so as to conveniently and clearly see the relevant parts of the human body, and the operation is accurately carried out, therefore, the demand of hospitals is increased year by year, the production efficiency of manufacturers needs to be improved along with the demand, the production process of the belly pad is replaced by automatic production, an automatic production device inevitably comprises a conveying mechanism, a folding mechanism and a sewing mechanism, the conveying mechanism is the most important in realizing the automatic production line, the conveying of the conveying mechanism determines the finished product effect of the follow-up sewing and the sewing efficiency, the invention relates to the initial feeding mechanism in the conveying mechanism, the conventional belly pad fabric is quantitatively cut and folded in the production process, but the conventional quantitative cutting and folding modes are two, one is the conventional manual production, the quantitative cutting is carried out through a ruler plate after the belly pad fabric is folded in half, the quantitative cutting is likely to be irregular, the edge of the cut is skewed, the middle layer pad is inconsistent in size, the automatic production is realized, the conveying of the belly pad determines the finished product effect of the follow-up sewing and the sewing efficiency, the length of the belly pad fabric is relatively low, the automatic cutting is relatively required to be realized, the automatic cutting is required to be realized, the length of the fabric is relatively short, the fabric is required to be cut, and the fabric is relatively short, the length of the fabric is required to be cut by the cutter to be cut, and the fabric is relatively short, and the fabric is required to be cut by the cutter.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an abdomen cushion fabric processing device capable of being folded, cut and folded quickly, and used for overcoming the defects in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a surface fabric fixed length hem processingequipment, includes the frame, including work platform, discharging roller, feeding roller group and cutting mechanism in the frame, the cover is equipped with abdomen pad surface fabric and rolls up on the discharging roller, feeding roller group is used for carrying the output surface fabric of abdomen pad surface fabric and rolls up to work platform on, cutting mechanism is located work platform, cutting mechanism is used for cutting off the output surface fabric of abdomen pad surface fabric of rolling up, still including fifty percent discount mechanism and hem mechanism in the frame, the fifty percent discount mechanism includes folded plate and first translation power supply, the folded plate is located work platform upper surface, hem mechanism includes punch holder, lower plate, preforming, second translation power supply, third translation power supply, first rotary power source and second rotary power source, punch holder and lower plate all are located work platform's one side below, the upper clamping plate is positioned above the lower clamping plate, the pressing plate is positioned above the working platform, the upper clamping plate and the lower clamping plate are respectively provided with a first slot and a second slot, when the conveyed fabric is conveyed above the upper clamping plate, the second translational power source drives the pressing plate to move in the vertical direction so as to enable the pressing plate to press one side edge of the conveyed fabric into the first slot, the third translational power source drives the upper clamping plate to move in the vertical direction so as to enable the upper clamping plate to lift one side edge of the conveyed fabric upwards above the working platform, the first rotational power drives the upper clamping plate to rotate in the vertical direction so as to enable the upper clamping plate to rotate one side edge of the conveyed fabric to be parallel to the working platform, the first translational power source drives the folding plate to move in the horizontal direction so as to enable the folding plate to push the lifted output fabric to one side, the motion direction of folded plate is the same with the direction of delivery of output surface fabric, works as when cutting mechanism cuts off output surface fabric, second translation power source drive preforming is in vertical direction upward motion, so that the preforming is with the side of output surface fabric department of cutting off in pressing to the second slot, second rotation power source drive the lower plate rotates in vertical direction, so that the lower plate will clip the output surface fabric side rotate to be parallel with work platform, the direction of rotation of punch holder is the same with the direction of rotation of lower plate and all rotates towards discharging roller one side.
Further, two sets of corner shifting mechanisms that deviate from are arranged on one side of the pressing piece, the two sets of corner shifting mechanisms comprise corner shifting pieces and fourth translational force sources, the two sides of the pressing piece are respectively provided with a sliding port in a symmetrical mode, the corner shifting pieces comprise connecting portions and corner shifting portions protruding downwards, the connecting portions are connected with fourth translational force sources, an upper limit groove and a lower limit groove are respectively symmetrically arranged on the connecting portions and the corner shifting portions, openings of the upper limit groove and the lower limit groove are opposite, the pressing piece at the upper end of the sliding port is embedded in the upper limit groove, the pressing piece at the lower end of the sliding port is embedded in the lower limit groove, and the fourth translational force sources drive the connecting portions to move in the horizontal direction, so that the corner shifting portions dial in the middle of an output fabric angle after edge folding.
Further, the cutting mechanism comprises a knife rest, an upper cutter, a lower cutter and a fifth translation power source, wherein vertical sliding rails are further arranged on two sides of the knife rest, the upper cutter is slidably connected between the vertical sliding rails on two sides, the lower cutter is located below one side of the working platform, the fifth translation power source drives the upper cutter to move in the vertical direction, so that the upper cutter presses the conveying fabric downwards to be cut off on the lower cutter, the movement direction of the upper cutter is perpendicular to the conveying direction of the output fabric and is crossed with the conveying direction of the output fabric, a pressing mechanism is further arranged on the knife rest, the pressing mechanism comprises a pressing frame, a pressing plate, a feeding plate, a sixth translation power source and a seventh translation power source, the pressing frame is slidably connected between two sides of the knife rest, the feeding plate is located on the same plane with the working platform, the pressing plate is located on the knife rest above the feeding plate, the sixth translation power source drives the pressing frame to move in the horizontal direction, so that the feeding plate pushes the conveying fabric to one side of the lower cutter, the pressing block is pushed by the seventh translation power source to move in the vertical direction, and the pressing block is driven to move in the direction on the edge of the conveying plate.
Further, a lifting plate is arranged on one side of the lower cutter, eighth translation power sources are respectively arranged on two sides of the bottom of the lifting plate, and the eighth translation power sources drive the lifting plate to move in the vertical direction so that the lifting plate lifts the side edge of the output fabric cut-off.
Further, one side of work platform still is provided with the surface fabric holder perpendicularly, surface fabric holder upper surface both ends are equipped with the spread groove respectively, cutting mechanism one side still is equipped with pressing mechanism, pressing mechanism includes surface fabric holding strip, ninth translation power supply and tenth translation power supply, surface fabric holding strip is located surface fabric holder top, surface fabric holding strip bottom both sides are equipped with respectively with spread groove assorted spliced pole, ninth translation power supply drive the surface fabric holding strip moves in the horizontal direction, so that the spliced pole of surface fabric holding strip aims at the spread groove, tenth translation power supply drive surface fabric holding strip moves in vertical direction, so that the spliced pole of surface fabric holding strip inserts or breaks away from the spread groove.
Further, the elastic plates are arranged in the first slot and the second slot, and an elastic cylinder for driving the elastic plates to move is arranged on one side of the elastic plates so that the elastic plates compress or separate from the output fabric.
Further, the feed roller group includes the dancer roll, goes up compression roller and lower compression roller, the both sides of frame are equipped with the connecting plate respectively, go up compression roller and lower compression roller all are connected between the connecting plate, be equipped with the rotatory motor of compression roller pivoted under the drive on the connecting plate of one side, both sides all be equipped with stop bolt on the connecting plate, both sides stop bolt one end is all passed the connecting plate upper surface that corresponds and is supported and press on last compression roller, the both sides of frame still are equipped with two vertical slide posts, dancer roll and two all be equipped with the retaining member between the slide post, the dancer roll passes through retaining member sliding connection two on the slide post.
The automatic feeding and discharging device has the beneficial effects that 1, through the matching of the upper clamping plate and the folded plate, the head end of the output fabric is clamped and lifted by the upper clamping plate, and then the folded plate moves in the conveying direction of the output fabric to push the lifted output fabric to one side in the conveying direction, so that the output fabric can be folded in half, and compared with the existing quantitative cutting mechanism, the automatic feeding and discharging device can randomly select the required belly pad length according to the requirement, and the problem that the working platform is insufficient to meet the requirement length due to the overlong belly pad length of the requirement is avoided;
2. Through the cooperation of punch holder, lower plate and preforming, the head end of output surface fabric is cliied by the punch holder earlier, make the head end side of output surface fabric through first clamp groove can the hem, carry back folded plate ration fifty percent discount and cut through the punch holder with output surface fabric, it can the hem to carry output surface fabric again by the lower plate, make the cut end side of output surface fabric through the second clamp groove, stack in cut end hem department with the head end after the hem aligns, compare with current hem mechanism, this mode combines the hem together in quantitative in-process, make the degree of fit between each mechanism subassembly higher, the volume of equipment is reduced, quantitative fifty percent discount has been improved, cut and the work efficiency of hem, the production efficiency of belly pad has been greatly improved;
3. Both sides of the pressing sheet are provided with corner poking mechanisms, two corners of the folded edge are poked into the inside through the corner poking sheets in the corner poking mechanisms, and the aim of avoiding corner sewing in place caused by corner overflow in the process of folding and sewing of the fabric is achieved in the process, or side edge sewing is not neat, and finally the reduction of the production yield is caused.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a diagram of the relationship between the folding mechanism, the hemming mechanism and the cutting mechanism in the present invention;
FIG. 3 is a structural view of the upper clamping plate of the present invention;
FIG. 4 is an enlarged view at A in FIG. 3;
FIG. 5 is a structural view of a lower clamping plate in the present invention;
FIG. 6 is a block diagram of a tablet according to the present invention;
FIG. 7 is a block diagram of a cutting mechanism and a pressing mechanism in the present invention;
fig. 8 is a structural view of a cutting mechanism and a pressing mechanism in the present invention.
Reference numeral 1, a frame; 2, a discharging roller; 21, abdomen cushioning fabric rolls, 3, a feeding roller set, 31, an upper press roller, 32, a lower press roller, 33, a connecting plate, 34, a rotary motor, 4, a cutting mechanism, 41, a knife rest, 42, an upper cutter, 43, a lower cutter, 44, a fifth translational power source, 45, a vertical slide rail, 51, a folded plate, 52, a first translational power source, 6, a folding mechanism, 61, an upper clamping plate, 611, a first slot, 612, an elastic plate, 62, a lower clamping plate, 621, a second slot, 63, a pressing plate, 631, a sliding port, 64, a second translational power source, 65, a third translational power source, 66, a first rotary power source, 67, a second rotational power source, 7, a corner shifting mechanism, 71, a corner shifting sheet, 711, a connecting part, 712, a corner shifting part, a fourth translational power source, 81, a pressing frame, 82, a pressing plate, 83, a feeding plate, 84, a sixth translational power source, 85, a seventh translational power source, 91, a lifting plate, 92, an eighth translational power source, 10, a fabric frame, 11, a clamping frame, a connecting mechanism, 121, a ninth translational power source, a cylinder, a clamping column, a 13, a locking roller, a locking mechanism, a rolling column, and a locking roller.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Embodiments of the invention are described in further detail below with reference to the attached drawing figures:
The automatic production, the belly pad fabric is conveyed to the lower part of the cutting knife through a conveying roller, the conveying length of the belly pad fabric is calculated through the rotation number of the conveying roller, or the length of the belly pad fabric is determined to meet the requirement through the positioning point in front of the cutting knife, the folding mechanism 6 of the belly pad fabric is complex, the quantitative cutting is only suitable for cutting with short length, the folding mode is low in folding efficiency, and automatic rapid production cannot be realized, therefore, the fabric fixed-length folding processing device is designed, and the automatic fabric fixed-length folding processing device is particularly structurally as shown in figure 1, and comprises a frame 1, a working platform, a feeding roller set 3 and a cutting mechanism 4, wherein the feeding roller set 2 is sleeved with the belly pad fabric, the feeding roller set 21 is provided with a connecting plate 33 corresponding to the upper and lower roller set 31, the lower roller set 31 is arranged on one side of the frame 1, the two sides of the connecting plate 33 are correspondingly provided with a regulating screw 33, the upper and lower roller set 31 are correspondingly provided with a regulating screw 33, and two sides of the regulating screw 33 are correspondingly arranged on the upper and lower roller set 33 are correspondingly provided with two sides of the upper and two sides of the connecting plates 33, so that the distance between the upper press roller 31 and the lower press roller 32 can be adjusted, the conveying speed and the tightness degree of the output fabric can be adjusted, two vertical slide columns 15 are arranged on two sides of the frame 1, locking pieces 16 are arranged between the regulating roller 13 and the two slide columns 15, the regulating roller 13 is slidably connected on the two slide columns 15 through the locking pieces 16 (the regulating roller 13 can move up and down on the slide columns 15 by rotating the locking pieces 16 on two sides, and the output fabric passes through the regulating roller 13, so that the purpose is to adjust the conveying tightness degree of conveying face.
As shown in fig. 1-8, the cutting mechanism 4 is located on a working platform, the cutting mechanism 4 is used for cutting off the output fabric of the abdomen cushion fabric roll 21, the frame 1 further comprises a folding mechanism and a folding mechanism 6, the folding mechanism comprises a folding plate 51 and a first translation power source 52 (a motor), the folding plate 51 is located on the upper surface of the working platform, the folding mechanism 6 comprises an upper clamping plate 61, a lower clamping plate 62, a pressing plate 63, a second translation power source 64 (a cylinder), a third translation power source 65 (a cylinder), a first rotary power source 66 (motor) and a second rotary power source 67 (motor), the upper clamping plate 61 and the lower clamping plate 62 are both positioned below one side of the working platform (the side is the side of the output fabric outlet, namely the end of the working platform), the upper clamping plate 61 is positioned above the lower clamping plate 62, the pressing plate 63 is positioned above the working platform, a first slot 611 and a second slot 621 are respectively arranged on the upper clamping plate 61 and the lower clamping plate 62, when the conveying fabric is conveyed above the upper clamping plate 61, the second translation power source 64 drives the pressing plate 63 to move in the vertical direction, so that the pressing plate 63 presses one side of the output fabric into the first slot 611 (the side of the output fabric at the moment is not aligned with the first slot 611, so that the side forms a hem after the side is inserted into the first slot 611 through the pressing plate 63), the third translation power source 65 drives the upper clamping plate 61 to move in the vertical direction, so that the upper clamping plate 61 lifts one side edge of the clamped output fabric upwards above the working platform, the upper clamping plate 61 is driven by the first rotary power to rotate in the vertical direction, so that the upper clamping plate 61 rotates one side edge of the clamped output fabric parallel to the working platform, the folded plate 51 is driven by the first translational power source 52 to move in the horizontal direction, so that the folded plate 51 pushes the lifted output fabric to one side, the moving direction of the folded plate 51 is the same as the conveying direction of the output fabric (by the cooperation of the upper clamping plate 61 and the folded plate 51, the head end of the output fabric is clamped and lifted by the upper clamping plate 61, and then the lifted output fabric is pushed to one side in the conveying direction by the folded plate 51 by the moving of the folded plate 51 in the conveying direction of the output fabric, compared with the prior quantitative cutting mechanism 4, according to the mode, the length of a required belly pad can be arbitrarily selected according to the requirement, the problem that the working platform is insufficient to meet the requirement length due to the overlong belly pad length of the requirement is avoided, when the cutting mechanism 4 cuts off output fabric, the second translational force source 64 drives the pressing sheet 63 to move in the vertical direction, so that the pressing sheet 63 presses the side edge of the cut-off portion of the output fabric into the second slot 621, the second rotational force source 67 drives the lower clamping plate 62 to rotate in the vertical direction, so that the lower clamping plate 62 rotates the clamped side edge of the output fabric to be parallel to the working platform, the rotation direction of the upper clamping plate 61 is the same as that of the lower clamping plate 62 and all rotates towards the discharge roller 2, and the upper clamping plate 61 is used for driving the lower clamping plate 62 to rotate towards the discharge roller 2, the cooperation of lower plate 62 and preforming 63, the head end of export surface fabric is cliied by punch holder 61 earlier, make the head end side of export surface fabric can the hem through first double-layered groove, lift up the back folded plate 51 ration fifty percent discount of export surface fabric through punch holder 61 and cut, again, it can the hem to make the cutting end side of export surface fabric through second double-layered groove, in the stack of alignment after with the head end hem in cutting end hem department, compare with current hem mechanism 6, this mode combines the hem together in the in-process of ration, make the degree of cooperation between each mechanism subassembly higher, the volume of equipment is reduced, the ration fifty percent discount has been improved, the working efficiency of cutting and flanging greatly improves the production efficiency of the abdomen cushion.
As shown in fig. 6, two sets of corner pulling mechanisms 7 facing away are disposed on one side of the pressing piece 63, each set of corner pulling mechanisms 7 includes a corner pulling piece 71 and a fourth flat moving force source 72 (air cylinder), two sides of the pressing piece 63 are respectively and symmetrically provided with a sliding opening 631, each corner pulling piece 71 includes a connecting portion 711 and a corner pulling portion 712 protruding downwards, the connecting portion 711 is connected with the fourth flat moving force source 72, an upper limit groove and a lower limit groove are respectively and symmetrically disposed on the connecting portion 711 and the corner pulling portion 712, openings of the upper limit groove and the lower limit groove are opposite, the pressing piece 63 on the upper end of the sliding opening 631 is embedded in the upper limit groove, the pressing piece 63 on the lower end of the sliding opening 631 is embedded in the lower limit groove, the fourth flat moving force source 72 drives the connecting portion 711 to move in the horizontal direction, so that one corner of the output fabric after the folding is pulled in the middle of the output fabric, the corner pulling piece 71 is disposed on two sides of the corner pulling piece 63, two corners of the folded strip edges are pulled in the inner side by the corner pulling piece 71, and the two corners of the edge pulling piece 71 are folded edge pulling mechanism are folded inwards, the edge pulling mechanism is not folded, the sewing edge is reduced or the sewing edge is not caused in the sewing process, and the sewing edge is not reduced, or the sewing edge is not caused.
As shown in fig. 8, the cutting mechanism 4 comprises a knife rest 41, an upper knife 42, a lower knife 43 and a fifth translational power source 44 (air cylinder), wherein vertical sliding rails 45 are arranged on two sides of the knife rest 41, the upper knife 42 is connected between the vertical sliding rails 45 on two sides in a sliding way, the lower knife 43 is positioned below one side of the working platform, the fifth translational power source 44 drives the upper knife 42 to move in the vertical direction so that the upper knife 42 presses the conveyed fabric to cut off on the lower knife 43 downwards, the moving direction of the upper knife 42 is perpendicular to the conveying direction of the conveyed fabric and crossed in a cross way (when the upper knife 42 moves downwards to act on the lower knife 43, the conveyed fabric is cut off, the upper knife 42 cuts on the width of the conveyed fabric, and the conveying direction of the conveyed fabric is the length direction), as shown in fig. 7, a pressing mechanism is further arranged on the knife rest 41, the pressing mechanism comprises a pressing frame 81, a pressing plate 82, a feeding plate 83, a sixth translation power source 84 (air cylinder) and a seventh translation power source 85 (air cylinder), wherein the pressing frame 81 is connected between two sides of the tool rest 41 in a sliding way, the feeding plate 83 is positioned on the tool rest 41, the feeding plate 83 is positioned on the same plane with the working platform, the pressing plate 82 is positioned on the tool rest 41 above the feeding plate 83, the sixth translation power source 84 drives the pressing frame 81 to move in the horizontal direction so as to enable the feeding plate 83 to push conveying fabrics to the side of the flanging mechanism 6, the seventh translation power source 85 drives the pressing block to move in the vertical direction so as to enable the pressing block to press the conveying fabrics on the feeding plate 83, when the upper cutter 42 needs to move downwards to act on the lower cutter 43, the pressing plate 82 is required to press the output fabrics on the side of the cutters, so that wrinkles do not occur during the cutting process.
As shown in fig. 8, a lifting plate 91 is disposed on one side of the lower cutter 43, eighth translation power sources 92 (air cylinders) are disposed on two sides of the bottom of the lifting plate 91, the eighth translation power sources 92 drive the lifting plate 91 to move in the vertical direction, so that the lifting plate 91 lifts the cut side edge of the output fabric, when the upper cutter 42 moves downward to act on the lower cutter 43, the cut side edge of the output fabric is cut off, the cut side edge of the output fabric is pressed downward by the upper cutter 42 into one side of the lower cutter 43, namely, the lower part of the working platform, so that a parallel lifting plate 91 is disposed on one side of the lower cutter 43, when cutting is needed, the lifting plate 91 moves downward, after cutting is completed, the lifting plate 91 resets upward, and lifts the cut abdomen pad upward to be parallel to the working platform, so that the subsequent edge is folded.
As shown in fig. 1-2, a fabric clamping frame 10 is further vertically arranged on one side of the working platform, connecting grooves 11 are respectively formed in two ends of the upper surface of the fabric clamping frame 10, a material pressing mechanism 12 is further arranged on one side of the cutting mechanism 4, the material pressing mechanism 12 comprises a fabric clamping strip 121, a ninth translation power source 123 (air cylinder) and a tenth translation power source 124 (air cylinder), the fabric clamping strip 121 is located above the fabric clamping frame 10, inserting columns 122 matched with the connecting grooves 11 are respectively arranged on two sides of the bottom of the fabric clamping strip 121, the ninth translation power source 123 drives the fabric clamping strip 121 to move in the horizontal direction, so that the inserting columns 122 of the fabric clamping strip 121 are aligned with the connecting grooves 11, the tenth translation power source 124 drives the fabric clamping strip 121 to move in the vertical direction, the inserting columns 122 of the fabric clamping strip 121 are inserted into or separated from the connecting grooves 11, after quantitative folding and cutting of an output fabric are completed, a completed abdomen cushion can be transferred onto the fabric clamping frame 10, pressed on the fabric clamping frame 10 by the fabric clamping strip 121, and then transported to a mechanism for sewing.
As shown in fig. 4, the elastic plates 612 are disposed in the first slot 611 and the second slot 621, and an elastic cylinder 14 is disposed on one side of the elastic plate 612 to drive the elastic plate 612 to move so that the elastic plate 612 compresses or separates from the output fabric, and when the pressing sheet 63 presses the corresponding edge of the output fabric into the first slot 611 and the second slot 621, the elastic cylinder 14 drives the elastic plate 612 to press the output fabric pressed into the corresponding slot, so as to avoid affecting the subsequent folding edge in the corresponding slot in the movement process.
The operation principle is that firstly, the abdomen-cushioning fabric roll 21 on the discharging roller 2 enters the working platform after passing through the feeding roller group 3, when the head edge of the output fabric is conveyed to the upper part of the upper clamping plate 61, the pressing plate 63 presses the head edge into the first slot 611 downwards, the head edge forms a folded edge at the moment, then the upper clamping plate 61 clamps and lifts the head edge of the output fabric, the folded plate 51 pushes the lifted output fabric to one side in the conveying direction by moving the folded plate 51 in the conveying direction of the output fabric, so that the output fabric is quantitatively folded in half, the folded edge is reset, the pressing plate 82 presses the output fabric downwards, the lifting plate 91 moves downwards, the upper cutting plate 42 acts downwards on the lower cutting plate 43 to cut off the output fabric, the upper cutting plate 42 resets, the lifting plate 91 moves upwards to lift the cut-off edge upwards, the tail edge of the abdomen-cushioning fabric at the front side is positioned above the lower clamping plate 62, the pressing plate 63 presses the head edge into the second slot 621 downwards, the tail edge forms a folded edge at the moment, after the head edge and the tail edge is uniformly folded, the upper clamping plate 61 rotates a certain angle to enable the head edge to be parallel to the working platform, and then the tail edge is transferred to the upper clamping frame 10 to be aligned with the upper clamping frame, and the upper clamping frame 121 is pressed tightly, and the fabric is conveyed by the sewing device.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.