374results about "Feeders" patented technology

The utility model discloses a presser foot driving device and a machine head of a computerized embroidery machine, the presser foot driving device comprises a connecting rod mechanism, the connecting rod mechanism comprises a plurality of hinging positions, and when a presser foot driver is located at the lowest position and the highest position, the connecting rod mechanism is hinged to the connecting rod mechanism. The multiple hinge positions include a first hinge position, a second hinge position and a third hinge position which are adjacent to one another, a connecting line of a hinge center (A or D) corresponding to the first hinge position and a hinge center (B or E) corresponding to the second hinge position, and a connecting line of a hinge center (B or E) corresponding to the third hinge position. The included angle between the connecting lines of the hinge center (C or F) corresponding to the third hinge position and the hinge center (B or E) corresponding to the second hinge position ranges from 170 degrees to 190 degrees, by adjusting the included angle, synchronous movement of the presser foot driver and a needle rod is facilitated, instant impact force generated when the presser foot driver makes contact with a presser foot sliding sleeve is reduced as much as possible, noise is reduced, and the service life of the presser foot sliding sleeve is prolonged. And meanwhile, the cloth pressing pause time of the presser foot is ensured.

An embroidery frame arrangement assignable to a sewing or embroidery machine and on which an at least sectionally tubular or bag-like textile structure is clampable in order to provide a flat, single-layer first partial region of the textile structure to be embroidered. The embroidery frame arrangement has first and second frame parts which are fixable together and / or second and third frame parts which are fixable together. The tubular or bag-like section of the textile structure is fixable between the first and second frame parts or between the second and third frame parts when the second frame part engages with the first frame part and / or when the third frame part engages with the second frame part. Consequently, the flat, single-layer first partial region of the textile structure to be embroidered is provided on the second frame part and surrounded thereby or is provided on the third frame part and surrounded thereby.

The utility model relates to a large-stroke tabouret fixing device which comprises a moving plate and a connecting piece, the moving plate is slidably mounted on a driving frame, the connecting piece comprises a connecting plate and a limiting plate, the connecting plate is arranged on the moving plate, the limiting plate is arranged at the position of the connecting plate, a tabouret is slidably mounted on the limiting plate, and a locking mechanism is arranged on the limiting plate. The locking mechanism comprises an ejector block and a limiting piece, the ejector block is slidably mounted at the limiting plate and located on one side of the tabouret, and the limiting piece is arranged on the limiting plate and located on one side of the ejector block; during installation, the connecting plate is fixed to the moving plate, the two sides of the tabouret are installed on the limiting plates in a sliding mode, the ejector block slides to one side of the tabouret, the position of the tabouret is fixed, the position of the ejector block is limited through the limiting piece, when the tabouret moves along with the moving plate, the tabouret is not prone to loosening, and the tabouret fixing device has the good tabouret fixing effect.

The utility model provides a material clamping device of an intelligent embroidery machine, which belongs to the technical field of textile equipment and comprises a mounting seat, vertical plates are fixedly arranged on the left side and the right side of the upper surface of the mounting seat, and a spacing plate is fixedly arranged in the center of the upper surface of the mounting seat; by loosening the positioning bolts and moving the inverted concave frame towards one side of the mounting base along the sliding groove, the inverted concave frame is located on the left side of the clamping plate, then the clamping plate is rotated to be vertical, cloth needing to be embroidered is placed between the bottom plates, then the clamping plate is rotated, and the clamping plate is matched with the bottom plates to clamp the cloth needing to be embroidered. Finally, the inverted concave frame is moved along the side away from the mounting base and located above the clamping plate, the positioning bolt is tightened, a rubber disc at the bottom of the positioning bolt is attached to the upper surface of the clamping plate, the effect of positioning the clamping plate is achieved, the clamping stability of the clamping plate matched with the bottom plate to the cloth needing to be embroidered is guaranteed, the structure is simple, operation is convenient, and practicability is high. And the service life of the device can be prolonged.

The invention relates to the technical field of embroidery equipment, in particular to a mixed embroidery device and an embroidery machine, the mixed embroidery device comprises a crossbeam, and the crossbeam is connected with a plain embroidery machine head and a taping embroidery machine head; the plain embroidery machine head comprises a plain embroidery machine shell and a plain embroidery needle bar frame moving on the plain embroidery machine shell; the taping embroidery machine head comprises a taping embroidery machine shell, a needle rod assembly, a presser foot assembly and a material disc assembly. The presser foot assembly comprises a presser foot tube and a presser foot rotation driving mechanism for driving the presser foot tube to rotate; the charging tray assembly comprises a charging tray pipe and a charging tray driving mechanism for driving the charging tray pipe to rotate, and the charging tray driving mechanism comprises a charging tray driving motor; the mixed embroidery device further comprises a main shaft; and a charging tray driving output shaft of the charging tray driving motor is arranged between the main shaft and the girder. According to the hybrid embroidery device, the head distance between the machine heads can be smaller, so that more machine heads can be installed in a limited space.

A sewing machine external unit includes: a holder holding fabric; a driver being detachable from a bed of a sewing machine and driving the holder along an upper surface of the bed; a pressing member moving in an up-down direction according to movement of a sewing needle in the up-down direction, pressing the fabric while the sewing needle is stuck in the fabric, and rising together with the sewing needle in response to the sewing needle coming out of the fabric and rising; a position detector detecting a position of the pressing member in the up-down direction; a signal output part outputting a signal to the sewing machine; and a controller outputting a needle drive signal for driving the sewing needle from the signal output part to the sewing machine, and controlling driving of the holder and / or the sewing needle based on a detection result of the position detector.

The utility model discloses a cloth pressing device of an embroidery machine, and relates to the technical field of embroidery machines. The cloth pressing device comprises an embroidery machine rack, an embroidery machine head is arranged on the embroidery machine rack, cloth is placed on the embroidery machine rack, two cloth pressing assemblies for pressing the cloth are arranged on the embroidery machine rack, each cloth pressing assembly comprises a compaction component and a leveling component, and each compaction component comprises an electric telescopic rod arranged at the top end of the embroidery machine rack. According to the cloth flattening device, cloth can be pulled to be flattened in the form of negative pressure of a vacuum generator through the arranged flattening component, due to the air permeability of the cloth, the adsorption effect on the cloth is limited, when wrinkles of the cloth are flattened, the cloth cannot continue to be stretched, the situation that the cloth deforms due to the large stretching effect is avoided, and the cloth flattening effect is good. In addition, the arranged compaction component not only can guarantee the compaction force on the cloth, but also the arranged vacuum suction plate is in surface-to-surface contact with the cloth, so that the compaction effect is better.

The embodiment of the utility model discloses a taping embroidery device and an embroidery machine. The device comprises a machine shell, a presser foot part and a charging tray part. The presser foot lifting driving mechanism of the presser foot part comprises a presser foot driving motor and a presser foot guide rod which are arranged on the machine shell. The device further comprises a feeding piece and a feeding driving mechanism, and the feeding piece is driven by the feeding driving mechanism to move up and down so as to pull the rope or the belt out of the material disc frame of the material disc part and lower the rope or the belt. The feeding driving mechanism comprises a feeding driving rod and a feeding driving motor which are arranged on the machine shell. According to the embodiment of the invention, the feeding piece and the feeding driving mechanism can be additionally arranged on an existing taping embroidery device, so that when a rope or a belt is conveyed to a presser foot or a pipe nozzle of the presser foot part from the material disc frame, the feeding piece can be driven to ascend and descend by the feeding driving mechanism, and a part of the rope or the belt is pulled out in advance; the phenomenon that the embroidery is pulled and deformed due to the fact that the rope or the belt which is punctured into the embroidery material by the upper thread is pulled and tightened by the tabouret can be avoided.

The invention belongs to the technical field of fabric processing equipment, and discloses a quilting embroidery machine and a quilting embroidery method. The quilting embroidery machine comprises a quilting machine seat frame, a cloth clamping assembly, a quilting saddle frame, an image acquisition device, a composite machine head and a cloth supporting assembly, the cloth clamping assembly clamps the edge of the cloth, and decorations to be fixed are stacked on the upper surface of the cloth; the quilting saddle frame is connected to the quilting machine seat frame in a sliding manner; the image acquisition device is used for acquiring an ornament stacking pattern and comparing the ornament stacking pattern with a preset pattern; the composite machine head is used for needling and fixing the ornament on the surface of the cloth and embroidering a preset pattern on the cloth; the cloth supporting assembly can support the working area of the composite machine head on the cloth. According to the quilting embroidery machine, the needling quilting quality can be ensured, the procedures of needling and fixing ornaments and embroidering can be completed by fixing cloth once, the production steps are simplified, meanwhile, the relative positions of embroidery patterns and needling and fixing ornament patterns are more accurate, and the quality and production efficiency of produced products are improved.

The embodiment of the utility model discloses a taping embroidery device and an embroidery machine. The device comprises a machine shell, a presser foot part, a material disc part and a rotary driving mechanism. The presser foot sleeve vertically penetrates through the machine shell, the rotary driving mechanism drives the material disc frame to rotate, and a first shaft sleeve is arranged outside the presser foot sleeve. The taping embroidery device further comprises a second shaft sleeve, a feeding ring piece and a feeding driving mechanism. The second shaft sleeve is arranged outside the first shaft sleeve, and the feeding ring piece is installed on the second shaft sleeve and allows a strip on the material disc frame to penetrate through and be fed into a pipe nozzle or a pressing foot of the pressing foot part. The feeding driving mechanism drives the second shaft sleeve to ascend and descend so as to drive the feeding ring piece to ascend and descend in the vertical direction. The rotation driving mechanism drives the first shaft sleeve to rotate so as to drive the second shaft sleeve provided with the feeding ring piece to rotate. According to the embodiment of the invention, the belt material can be fed into the feeding ring piece from multiple angles after being pulled out of the material disc, and the feeding ring piece can output the flattened belt material, so that the belt material locked by an upper thread is smooth, and the embroidery quality is high.

The utility model discloses a differential matching device of a presser foot. The differential matching device comprises a main shaft, a cam arranged on the main shaft, a needle bar, the presser foot sleeved on the needle bar in a sliding manner, a transmission assembly and an elastic piece, the transmission assembly comprises a first transmission part with a first rotating fulcrum and a second transmission part with a second rotating fulcrum, and the first transmission part and the second transmission part are directly or indirectly movably connected; the first transmission part is provided with a roller, and the elastic part exerts elastic force on the transmission assembly and is used for keeping rolling fit between the roller and the outer cam face of the cam and enabling the second transmission part to be matched with the ascending stroke and the descending stroke of the presser foot. The utility model further discloses an embroidery machine. The utility model has the beneficial effect that the structure of the cam is prevented from being damaged.

The invention discloses a conjugate cam presser foot driving device and an embroidery machine, and relates to the embroidery technology, the conjugate cam presser foot driving device comprises a conjugate connecting rod assembly driven by a conjugate cam, and the conjugate cam is provided with an inner cam surface and an outer cam surface; the conjugate connecting rod assembly comprises a conjugate connecting rod rotationally connected to the first conjugate connecting rod pin and a presser foot driving connecting rod rotationally connected to the second conjugate connecting rod pin, the conjugate connecting rod is provided with a first transmission part and a second transmission part, and the presser foot driving connecting rod is provided with a presser foot driving part; the first transmission part is matched with the inner cam surface, and the second transmission part is matched with the outer cam surface, so that the conjugate cam drives the conjugate connecting rod to rotate through the first transmission part and the second transmission part, the conjugate connecting rod drives the presser foot driving connecting rod to rotate, the presser foot driving part is arranged below the presser foot positioning block, and the presser foot positioning block is connected with the presser foot. And the presser foot driving connecting rod is synchronous with the lifting of the presser foot when driving the presser foot to work, so that the presser foot driving part is always in contact with the bottom surface of the presser foot positioning block.

The differential matching device comprises a main shaft, a cam arranged on the main shaft, a needle bar, a presser foot sleeved on the needle bar in a sliding manner, a transmission assembly, a presser foot driving block capable of moving in a lifting manner, and an elastic piece, the transmission assembly comprises a first transmission piece with a first rotating fulcrum, and the first transmission piece is directly or indirectly movably connected with the presser foot driving block; the first transmission part is provided with a roller, and the elastic part is suitable for providing elastic force for the transmission assembly and used for keeping rolling fit between the roller and the outer cam face of the cam and enabling the second transmission part to be matched with the ascending stroke and the descending stroke of the presser foot. The utility model further discloses an embroidery machine. The beneficial effect of the utility model is that the structure is prevented from being damaged.

The utility model discloses a thread take-up lever disengagement drive mechanism, comprising: a presser foot, a presser foot drive mechanism for driving the presser foot, a thread take-up lever with a transmission component, a thread take-up lever drive mechanism for driving the transmission component, and a disengagement drive assembly; during the process of the presser foot being lifted to its original position, the presser foot acts on the disengagement drive assembly, and the disengagement drive assembly acts on the transmission component, so that the transmission component moves laterally and is separated from the thread take-up lever drive mechanism. The utility model also discloses an embroidery machine. The utility model has the beneficial effect that the thread take-up lever can stop taking up the thread when the embroidery machine stops without separately configuring a driver.

The embodiment of the utility model discloses a taping embroidery device and an embroidery machine. The device comprises a presser foot rotation driving mechanism for driving a presser foot sleeve to synchronously rotate along with the embroidery stitch direction. The device comprises a charging tray rotation driving mechanism for driving a charging tray shaft sleeve to rotate, and the charging tray shaft sleeve synchronously rotates relative to a presser foot sleeve during sawtooth embroidery operation. The device comprises a swing rod structure which is installed on a material disc shaft sleeve and provided with a first conveying piece. The device further comprises a feeding lifting driving mechanism which drives the feeding shaft sleeve to ascend and descend so as to drive the swing rod structure to swing, so that the first conveying piece swings on the left side and the right side of a path formed in the embroidery stitch direction, and sawtooth embroidery is completed. In this way, the swing rod structure is additionally arranged on the material disc shaft sleeve, swing of the conveying piece is achieved based on an existing feeding driving part, implementation is convenient, and mechanical abrasion caused by frequent rotation of the presser foot sleeve is reduced. And during alternate embroidering, another operation to be alternately executed is not influenced.

A clamping frame (1) for an embroidery machine (5) for clamping a fabric (4), the frame comprising at least one notched plate (2) provided with at least one notch (21, 22), the shape of which corresponds to a first label (20) to be applied to the fabric (4) by sewing, the inner edge (22a) of the notch (22) being adapted to surround the first label (20) during sewing. The clamping frame (1) further comprises a hold-down device (6) with a platen (60) which is movable relative to the clamping frame (1) between a retracted position and a further position in which the platen is housed in the cutout (22) of the cutout plate (2) to hold the label in a direction perpendicular to the resting surface (P) for the fabric (4).

This invention discloses a lockable ribbon embroidery reel assembly and a ribbon embroidery machine. The ribbon embroidery reel assembly includes a reel support, a reel detachably mounted on the support, and a reel assembly locking structure located on the support. The locking structure engages with a reel assembly positioning structure to secure the ribbon embroidery reel assembly. This invention ensures that the ribbon embroidery reel assembly remains locked to the ribbon embroidery machine head and the color-changing and material-storing device of the ribbon embroidery reel assembly.

The application discloses an air bag type cloth clamp, which comprises a clamping piece, a connecting piece, an air bag and an inflating device. The clamping piece comprises two clamping arms, the connecting piece connects the two clamping arms and forms two air bag installation cavities between the clamping arms; the air bag is arranged in the air bag installation cavities, and the inflating device is communicated with the air bag to control inflation and deflation of the air bag. When the air bag is in a pressure relief state, arc-shaped flanges on the two clamping arms clamp and fix the cloth, the air bag is inflated by the inflating device to expand, so that the two clamping arms are separated, and the arc-shaped flanges of the clamping arms are loosened. In this way, the efficiency and precision of cloth fixing are effectively improved, and the labor intensity is reduced. In addition, the connecting mode between the clamping arms and the connecting piece simplifies the structure of the whole cloth clamp and reduces the processing and manufacturing difficulty of the cloth clamp.

An embroidery frame structure and an embroidery machine belong to the technical field of embroidery machines. The embroidery frame structure includes a table, an embroidery frame, an X-guide rail, a Y-front guide rail, a Y-rear guide rail, a plurality of X-drive systems, and a plurality of Y-drive systems; the X-guide rail is slidably connected to the left and / or right gears of the embroidery frame, the Y-front guide rail is slidably connected to the front gear of the embroidery frame, and the Y-rear guide rail is slidably connected to the rear gear of the embroidery frame; the Y-front guide rail and the Y-rear guide rail are arranged on the table in parallel along the X-axis direction, and drive the embroidery frame to move along the Y-axis track in the Y-drive system; the X-guide rail is arranged above the table along the Y-axis direction and is located above the Y-front guide rail and the Y-rear guide rail, and the X-guide rail drives the embroidery frame to move along the X-axis track in the X-drive system; the X-axis track and the Y-axis track are respectively arranged in the upper and lower spaces bounded by the embroidery frame movement plane. The embroidery machine includes the above-mentioned embroidery frame structure. The present invention can complete the embroidery operation of large-sized or small-sized embroidery patterns, the embroidery operation is stable, and high-quality embroidery products are finally obtained.

The utility model belongs to the technical field of embroidery machine tabouret transmission mechanisms, and particularly relates to an embroidery machine tabouret transmission mechanism with a lubricating function, which comprises a sliding rail base, a sliding frame, an electric push rod, a driving motor, a screw rod, a moving frame and a tabouret main body, a driving motor is mounted on the outer side of the sliding frame, a lead screw is connected between the output end of the driving motor and the sliding frame through a bearing, a movable frame is in threaded connection with the outer side of the lead screw, and a tabouret body is mounted on the inner side of the movable frame; the moving box is mounted at the top of the moving frame, an oil filter element is mounted in the moving box, an oil guide thin pipe is connected between the moving box and the moving frame, and a mounting block is welded to the top of the moving frame. The stability of the tabouret main body in the placing process is enhanced through the supporting plate, so that the tabouret main body is not easy to shake, and the stability of the embroidery machine in the embroidering process is enhanced.

The utility model provides an embroidery auxiliary positioning tool for garment processing, and relates to a cloth positioning tool, the embroidery auxiliary positioning tool for garment processing comprises a clamping assembly, the clamping assembly comprises a supporting base, the top of the supporting base is provided with a sliding groove, a sliding block is arranged in the sliding groove, the top of the sliding block is provided with a supporting plate, and the supporting plate is arranged on the supporting base. Third gears are arranged in the supporting plates, second racks are slidably connected to the outer sides of the third gears, connecting plates are arranged on the tops of the second racks, clamping plates are arranged on the outer sides of the connecting plates, and sliding blocks in sliding grooves in the tops of the supporting bases can be driven by second motors to drive the supporting plates to move to adjust the positions. A third gear in the supporting plate rotates under the driving of power and interacts with a second rack on the outer side to promote the second rack to move up and down, and then the clamping plates are driven by the connecting plate to move in the opposite direction or the opposite direction, so that accurate clamping operation of the cloth is achieved, and it is guaranteed that the cloth is stable and does not move during embroidery processing.

The utility model relates to the field of sliding rails, in particular to a wear-resistant sliding rail for a tablecloth rack of an embroidery machine, which comprises a first roller, an electric roller, a second roller, a sliding rail main body, a sliding platform and a lubricating component, and the lubricating component for regularly maintaining the sliding rail main body and the rollers on the sliding platform is mounted on the outer wall of the center of the sliding rail main body. Supporting shafts which are distributed at equal intervals are fixedly connected to the inner walls of the left end and the right end of the sliding rail body, first idler wheels are rotationally installed at the upper ends and the lower ends of the supporting shafts, electric idler wheels are rotationally installed in the centers of the supporting shafts, and first limiting blocks which are symmetrical front and back are fixedly connected to the inner wall of the lower end of the sliding rail body. The sliding platform can be assisted to slide along the inner wall of the sliding rail body, friction force generated between the sliding platform and the sliding rail body can be greatly reduced, lubricating oil can be sprayed on the three sets of rolling wheels regularly in an atomized mode through the lubricating assembly, and therefore the smoothness of the device in the using process is improved.

The utility model discloses a computerized embroidery machine with a good fixing effect. The computerized embroidery machine comprises a workbench, a corrugated pipe is mounted on one side of the workbench through a dust collection mechanism, an output pipe is fixedly mounted at one end of the corrugated pipe, a dust collection opening is formed in one end of the output pipe, and a clamping plate is mounted on one side of the workbench through a first moving mechanism. The first motor drives the two sets of clamping plates to move oppositely, the embroidery frame can be clamped and fixed through the clamping plates, the embroidery frame cannot deviate in the embroidery process, the embroidery work cannot be affected, meanwhile, the clamping plates drive the mounting plates to move, and the mounting plates drive the output pipe to move; the output pipe can move under the action of the corrugated pipe, the output pipe drives the dust collection opening to move, so that the dust collection opening reaches the position above the embroidery frame along with the clamping plate, the dust collector is started, the dust collector outputs suction force through the dust collection pipe, the suction force is conveyed through the corrugated pipe and the output pipe, and finally dust collection is conducted on the surface of the embroidery frame through the dust collection opening.

Method of stitching a first material, wherein the first material is configured to be stretched, tensioned, creased, or folded during use, wherein the method comprises the steps of; puncturing a first

The utility model discloses a tabouret which comprises a front gear, a rear gear, a left gear, a right gear, an X auxiliary gear and an X sliding trolley which is fixedly connected to the left gear and / or the right gear and is in sliding connection with the X auxiliary gear, an upper reinforcing plate is arranged on the top surface of the break angle part, a lower reinforcing plate is arranged on the bottom surface of the break angle part, and the strength of the upper reinforcing plate and the strength of the lower reinforcing plate are greater than that of the tabouret; the upper reinforcing plate, the corner folding part and the lower reinforcing plate are fixedly connected through a plurality of fasteners penetrating through the upper reinforcing plate, the corner folding part and the lower reinforcing plate, so that the upper reinforcing plate and the lower reinforcing plate clamp the corner folding part. The utility model further discloses an embroidery machine with the tabouret. The tabouret has the beneficial effect that the structural strength of the tabouret can be improved.

The invention discloses a high-flexibility clothing template replacement device, and relates to the technical field of template replacement, the high-flexibility clothing template replacement device comprises a clamping groove clamp, the clamping groove clamp is fixedly connected with a bottom plate through a screw, the bottom plate is slidably connected with clamping frames symmetrically distributed along the bottom plate, one side of each clamping frame is provided with a guide bevel edge, and the other side of each clamping frame is provided with a clamping groove; at least one first spring is fixedly connected between the bottom plate and the clamping frames, a plurality of clamping blocks distributed at equal intervals are arranged on the end faces, close to each other, of the symmetrically-distributed clamping frames, and a disassembling assembly used for driving the clamping blocks to loosen the garment template is arranged between the clamping groove clamp and the clamping frames. Through cooperation of the clamping frames, the clamping blocks and the first springs, the two sides can be automatically clamped when the garment templates are installed, and rapid adaptive installation of the garment templates of different sizes is achieved; and the template can be loosened only by pressing the lower pressing frame during disassembly, operation is simple and efficient, tool assistance is not needed, and the replacement efficiency is improved.

The utility model provides embroidery processing equipment and belongs to the technical field of embroidery processing. Comprising a supporting base, the top of the supporting base is rotationally sleeved with a fluted disc, a driving groove is formed in the surface of the fluted disc, a sliding pin is slidably connected into the driving groove, an adjusting rod is fixedly connected to the bottom of the sliding pin, a U-shaped frame is fixedly connected to one end of the adjusting rod, an abutting plate is installed on one side of the U-shaped frame, a first toothed rod is arranged on the upper side of the abutting plate, and a driven gear is meshed with one side of the first toothed rod; one corner of cloth is placed in the U-shaped frame, the driven gear is in meshing transmission with the first toothed bar, and then the abutting plate is driven to move downwards, so that the abutting plate is matched to clamp and fix one corner of the cloth, and then the other abutting plates are matched to press the corners of the cloth, so that the cloth can be fixed, and during embroidering, the cloth can be fixed conveniently. If the supporting strength needs to be adjusted, the driving groove drives the sliding pin to slide in the driving groove through rotation of the fluted disc, then the adjusting rod is driven to move outwards, and therefore the cloth is dragged and tensioned.

The utility model relates to a cloth pressing structure, in particular to a cloth pressing structure of a computer pattern sewing machine. Comprising a rack, a computer pattern sewing machine, a winding mechanism, a feeding mechanism, a fixing frame, a fixing block, a servo motor, a two-way threaded rod and the like. A computer pattern sewing machine is arranged in the middle of the upper side of the rack, a winding mechanism and a feeding mechanism are arranged on the left side and the right side of the rack respectively, a fixing frame is arranged on the lower side of the computer pattern sewing machine, fixing blocks are arranged on the left side and the right side of the fixing frame respectively, servo motors are installed on the rear portions of the left side and the right side of the fixing frame respectively, and output shafts of the servo motors are connected with two-way threaded rods. The two-way threaded rod is rotationally connected with the fixing block. The two-way threaded rod is driven by the servo motor, so that the two positioning frames can be close to or far away from each other, a cloth pressing area can be conveniently adjusted, and by means of the design of the lower pressing block, the connecting frame, the pressing plate and other components, the pressing plate can drive the edge of cloth to move to tension the cloth, and wrinkles of the cloth are removed.