1424 results about "Sewing machine" patented technology

The invention provides a cloth stem-crossing detection sewing device and method. The cloth stem-crossing detection sewing device comprises a first presser foot rod provided with an outer presser foot, a second presser foot rod provided with an inner presser foot, a presser foot transmission mechanism, a control module, a sewing material thickness detection sensor, an alternating quantity adjusting mechanism, an alternating quantity detection sensor and an alternating quantity adjusting driving source. The sewing material thickness detection sensor is obliquely mounted at the bottom of the sewing machine shell; detection points, falling on the sewing material, of the sewing material thickness detection sensor are distributed on the rear sides of the outer presser foot and the inner presser foot in the feeding direction of forward feeding during forward sewing of the sewing machine; the presser foot transmission mechanism is provided with a transmission swing seat for determining the alternating quantity of presser feet, and the alternating quantity adjusting driving source is connected with the transmission swing seat through the alternating quantity adjusting mechanism. The sewing material thickness is effectively detected in advance, so that the presser foot alternation amount is adjusted in time, the presser foot alternation amount of the sewing machine adapts to the change of the sewing material thickness, efficiency is improved, stem-crossing stitches are beautified, and sewing quality is guaranteed.

According to the noise vibration test equipment and the rotating shuttle calibration method, a rotating shuttle to be tested is installed on a rotating shuttle shaft driven by a driving device to rotate, an outer shuttle frame is fixed through a rotating shuttle positioning device, and the assembly and operation states of the rotating shuttle in a sewing machine are truly simulated; the noise and vibration parameters during high-speed operation are collected in real time by means of the noise and vibration detector, the noise and vibration performance of the rotating shuttle can be quantitatively evaluated before the whole machine is assembled, and interference of other parts of the whole machine is avoided. According to the method, the unqualified rotating shuttle can be recognized and debugged in advance, the situation that the noise and vibration of the whole machine exceed the standard due to the individual gap difference of the rotating shuttle is effectively prevented, front screening and grading management of the rotating shuttle quality are achieved, and the one-time assembly yield of the whole machine is remarkably improved; meanwhile, complex debugging after the whole machine is assembled is omitted, the rework, replacement and labor cost is greatly reduced, and the production efficiency and the product consistency are improved.

The invention discloses a clothing production effective labor hour accounting method and system based on the Internet of Things, and the method comprises the steps: obtaining the production assignment task data of a current sewing machine station, and judging whether the current sewing machine station is an effective labor station or not according to the production assignment task data; if yes, continuously monitoring and collecting a bottom-layer operation parameter sequence of the current sewing machine station through Internet of Things sensing equipment, and performing effective labor state judgment on the bottom-layer operation parameter sequence based on a predefined effective labor hour judgment logic rule; recording the duration of entering the effective working state each time by using a high-precision timer, and carrying out accumulation to generate effective working hour structured data; and generating a visual report and analysis data for performance management, production efficiency analysis and process optimization based on the effective man-hour structured data. Automatic accounting can be realized completely based on real operation data of the equipment, personal errors and faking are avoided, and justice, credibility, objectivity and accuracy of the data are ensured.

The utility model provides equipment for sewing four edges of a throw pillow case. The equipment comprises a cloth feeding mechanism, a short edge sewing mechanism, a cutting mechanism and a long edge sewing mechanism, the cloth feeding mechanism comprises a first cloth placing frame, a second cloth placing frame and a cloth overlapping module; the short edge sewing module comprises two first sewing machines and two second sewing machines; the cutting mechanism comprises a cloth pulling frame and a cutting knife, and the cloth pulling frame comprises a movable cloth pulling clamp; the long edge sewing mechanism comprises a platform, a movable cloth moving rod is arranged above the platform, and third sewing machines are arranged at the two ends of the platform. Two rolls of cloth are placed on the first cloth placing frame and the second cloth placing frame respectively and overlapped through the cloth overlapping module. Cloth is sewn on the two sides through the two first sewing machines, then the two sides of the cloth are sewn towards the middle by a certain distance through the two second sewing machines, then the cloth is moved to the platform through the cloth pulling clamp to be cut, finally, the cloth is pushed by the cloth moving rod to be pressed and fixed towards the cloth pressing rods on the two sides, the bolster sleeve is formed through sewing of the third sewing machine, and the overall equipment structure and the manufacturing process are simple.

The utility model provides a sewing machine, and belongs to the technical field of sewing equipment. The problem that an existing sewing machine is insufficient in sewing quality is solved. The sewing machine comprises a base, a needle plate with a needle falling hole, a rotating shuttle located below the needle plate, a thread shifting rod and a rotating piece capable of horizontally rotating, a guide piece located on the side portion of the rotating shuttle and capable of horizontally swinging is arranged on the base, the thread shifting rod comprises a rod body and an arc-strip-shaped thread shifting head, and the rod body is connected to the guide piece in a sliding mode in the axial direction of the rod body. One end of the thread pulling head is fixedly connected to the end, close to the rotating shuttle, of the rod body and bent upwards relative to the rod body, the other end of the rod body is rotationally connected to the position, deviating from the rotating center of the rotating piece, of the rotating piece, and when the rotating piece drives the rod body to move, the other end of the thread pulling head can be located between the needle falling hole and the rotating shuttle. According to the utility model, the sewing quality is further improved, and the manufacturing cost is obviously reduced on the basis.

The utility model belongs to the technical field of sewing machine technologies, and relates to an anti-interference type multi-light-eye correlation structure and a sewing machine thereof, a thread trimming switch assembly is arranged on a machine head of the sewing machine, and a thread trimmer assembly is arranged in a machine shell. A plurality of light eyes electrically connected with an electric control module of the sewing machine are sequentially arranged in the cloth feeding direction of the sewing machine, and emitters and inductors of the light eyes are arranged on the machine shell and the thread trimming switch assembly respectively to form an up-down correlation structure. Wherein the inductor of at least one light eye is arranged on the thread trimming switch assembly, and the inductor of the adjacent light eye is arranged on the machine shell. According to the anti-interference type multi-light-eye correlation structure and the sewing machine with the anti-interference type multi-light-eye correlation structure, the effects of accurate control and short thread ends can be achieved.

The present application particularly relates to a sewing machine for realizing intermittent cloth feeding operation, comprising a cloth feeding assembly and an intermittent driving assembly. The cloth feeding assembly comprises a cloth feeding wheel and a transmission rod connected to the cloth feeding wheel. The intermittent driving assembly comprises a driving body, a planetary gear assembly connected to the driving body and driving the transmission rod based on the driving body. The driving body has an axis, an eccentric wheel arranged at the axis, and an output connected to the eccentric wheel and the planetary gear assembly. The eccentric wheel is shaped with a plurality of first teeth at the outer edge. The output is shaped with a plurality of second teeth matched with the first teeth. The eccentric wheel performs an elliptical motion relative to the output after being driven by the axis. The output outputs kinetic energy to the planetary gear assembly only when the first teeth engage the second teeth.

The invention relates to the technical field of sewing equipment, in particular to a thread locking device and a sewing machine. The thread locking device comprises a machine body, a thread locking module, a bottom thread clamping module and a bottom thread tightening module, and a curved needle is installed in the machine body and used for driving a bottom thread to move. The thread locking module comprises a first driving part, a connecting rod assembly and a thread locking knife, the first driving part is installed on the machine body, the output end of the first driving part is connected with the connecting rod assembly, and the thread locking knife is installed at the end, away from the first driving part, of the connecting rod assembly; and the thread locking knife is driven to move towards or away from the curved needle. The bottom line clamping module is installed on the machine body and used for clamping a bottom line during line locking so as to prevent the bottom line from moving. The bottom thread tightening module is installed on the machine body and used for pulling the bottom thread during thread locking so as to tighten the bottom thread. According to the thread locking device and the sewing machine, the problem that an existing sewing machine thread locking device is low in thread locking success rate is solved.

The invention provides a piece counting method applied to a sewing machine, and the method comprises the steps: determining the movement distance of a sewn object when a position sensor detects the movement of the sewn object; if the moving distance of the sewing object meets a moving distance threshold value, acquiring a user hand action image recorded by an image sensor within a set time after the sewing object moves, and analyzing the user hand action image to obtain a hand action sequence; if it is confirmed that the hand action sequence contains the piece counting symbolic actions or the number of times of the hand actions contained in the hand action sequence is lower than the change threshold value, piece counting accumulation operation of the sewn object is executed. According to the method, the distance sensor is combined with the hand action recognition for automatic piece counting, manual piece counting is not needed, and the piece counting accuracy can be effectively improved. The invention further provides a piece counting system applied to the sewing machine, a computer readable storage medium and electronic equipment which have the above beneficial effects.

The invention relates to a sewing machine and a cloth pricking stroke adjusting device thereof. The cloth pricking stroke adjusting device comprises a driving mechanism, and an output shaft of the driving mechanism rotates to drive a presser foot lifting cam and an adjusting crank to rotate to a working position; the working positions comprise at least one adjusting position of the presser foot lifting cam and at least one adjusting position of the adjusting crank; the adjusting position of the presser foot lifting cam corresponds to the upper limit position and the lower limit position of the foot lifting module; the adjusting crank is hinged to the adjusting connecting rod, the adjusting position of the adjusting crank corresponds to the target angle of the adjusting crank, and the driving mechanism drives the adjusting crank to swing to the target angle, so that the position of the fixed end of the adjusting connecting rod changes along with the target angle of the adjusting crank. By adjusting the position target of the fixed end of the connecting rod, the target cloth puncturing stroke is correspondingly adjusted, the cloth puncturing stroke adjusting device is applied to the sewing machine, and the sewing machine with the cloth puncturing stroke adjusting function is obtained.

The utility model discloses a kind of clothing sewing machines with broken line detection function, comprising: equipment main body and auxiliary mechanism;Equipment main body includes sewing machine, mounting seat and sensor, the sensor is installed at mounting seat bottom, the sensor is installed to the outside of sewing machine by mounting seat;Auxiliary mechanism includes arc bottom plate, the position limiting baffle for limiting sewing thread and the adjusting push plate for adjusting the position of position limiting baffle, the utility model is by being provided with auxiliary mechanism, not only can be in sewing thread sewing process, the position of sewing thread is limited, avoid the position of sewing thread from deviating, while affecting sensor to sewing thread real-time monitoring result, on the other hand, the position of different size sewing thread can be limited when using, the limiting demand of different size sewing thread can be guaranteed by auxiliary mechanism, so as to carry out real-time monitoring to sewing thread.

The utility model relates to the technical field of sewing machines, in particular to a computer pattern sewing machine which comprises a computer pattern sewing machine body, and a cleaning mechanism used for cleaning a workbench is arranged on the workbench of the computer pattern sewing machine body. The strip-shaped plate transversely moves and simultaneously drives the push plate to transversely move so as to push residual thread ends and dust on the workbench of the computer pattern sewing machine body until the thread ends and the dust fall off from the workbench of the computer pattern sewing machine body. When the computer pattern sewing machine is used, the garbage can only needs to be placed below the working table of the computer pattern sewing machine body to receive thread residues and dust falling on the working table of the computer pattern sewing machine body, the thread residues and the dust remaining on the working table of the computer pattern sewing machine body can be removed at a time, and the working efficiency of the computer pattern sewing machine body is improved.

The invention discloses a cutting device for a sewing machine shell, and relates to the technical field of sewing machine shell cutting, the cutting device comprises a bottom table, a shell net rack is arranged on the top surface of the bottom table, two electric control sliding tables are arranged on the top surface of the bottom table, and the top surfaces of the two electric control sliding tables are each provided with a column frame; the long shell is fixed to the top faces of the two column frames, and a sliding groove is formed in the bottom end of the interior of the long shell; the screw rod is rotationally mounted on the inner wall of the long shell; the first servo motor is arranged on the left side of the long shell; the annular vertical frame is installed on the outer wall of the screw in a sliding mode, and the outer wall of the annular vertical frame is connected with the inner wall of the long shell sliding groove in a sliding mode; the I-shaped pipe slides left and right on the surface of the guide rod, the I-shaped pipe stretches and compresses the spring in a reciprocating mode, under the elastic force effect of the spring, the spring buffers the annular vertical frame, and therefore the problem that cutting of high-energy light beams emitted by the laser head is inaccurate due to shaking generated when the laser head moves and cuts is solved.

This invention provides a bobbin thread quantity detection device and method, and a sewing machine. The bobbin thread quantity detection device includes two magnetic components, a guide wire, and a detection system. The two magnetic components are respectively mounted on the bobbin case and are arranged opposite to each other along the circumferential direction of the bobbin case. The guide wire is mounted on the bobbin, and the bobbin has two contact portions. The two ends of the guide wire are respectively positioned corresponding to the two contact portions. At least a portion of the guide wire is mounted on the bobbin's rotating shaft, and a bobbin thread is wound on the rotating shaft to provide pressure for the two ends of the guide wire to move towards the two contact portions. The detection system is connected to the guide wire to detect the induced current on the guide wire. During bobbin rotation, the presence or absence of an induced current on the guide wire is used to determine whether there is sufficient bobbin thread. This invention solves the problem of low accuracy in detecting the bobbin thread quantity in existing technologies.

Knife (4), in particular upper knife, for a sewing or overlocking machine (1), wherein the knife has a direction of movement (Z) and a cutting edge (41) whose edge preferably runs at an angle (α) to the direction of movement (Z), characterized in that the cutting edge (41) is toothed.

The utility model discloses a pattern die fine adjustment structure of a multifunctional household sewing machine, which comprises a pattern die, a pattern die pawl correspondingly matched with the position of the pattern die is arranged on the pattern die, a baffle is arranged at the tail end of the pattern die pawl, and a pattern die pawl swing frame is arranged on one side of the baffle. A screw capable of driving the pattern mold pawl swing frame to adjust the left-right position is arranged on the pattern mold pawl swing frame, the screw is in threaded connection with the pattern mold pawl swing frame, the tail end of the screw makes contact with the baffle, an induction plate moving along with the pattern mold pawl swing frame is connected to the pattern mold pawl swing frame, and a needle rod assembly moving along with the induction plate is connected to the induction plate. The utility model has the beneficial effects that the position of the pattern die pawl swing frame can be quickly adjusted, the left-right position of the needle bar assembly which is correspondingly matched with the pattern die can be quickly adjusted, the quick fine adjustment effect is realized, the working efficiency can be improved, the precision of parts can be reduced, and the production cost is reduced.

The utility model provides a flat cutter thread trimming mechanism of a sewing machine and belongs to the technical field of sewing machines. The problem that an existing flat cutter thread trimming device is high in maintenance cost is solved. The flat cutter thread trimming mechanism of the sewing machine comprises a fixing frame, a rotating shaft vertically arranged on the fixing frame in a penetrating mode, a fixed cutter horizontally fixed to the fixing frame, a movable cutter connected to the fixing frame in a horizontal swinging mode and a movable handle arranged outside the rotating shaft in a sleeving mode and capable of rotating around the axis of the rotating shaft. The flat cutter thread trimming mechanism of the sewing machine further comprises a driving motor, a long-strip-shaped swing rod and a long-strip-shaped driving rod, an output shaft of the driving motor is vertically arranged, the swing rod and the driving rod are horizontally arranged, one end of the swing rod is fixed to the output shaft, and the other end of the swing rod is hinged to one end of the driving rod. And the other end of the driving rod is hinged with the other end of the movable handle. The flat cutter thread trimming mechanism of the sewing machine has the advantage of low maintenance cost.

The utility model belongs to the technical field of ribbon sewing machine, and disclose a kind of ribbon automatic sewing machine, including support piece, support piece top is fixedly connected with sewing machine body, the needle for sewing ribbon is installed in sewing machine body bottom, support piece top is also provided with two drive parts, two drive parts are symmetrically set in the both sides of needle, and drive part includes two moving plates, two moving plates are fixedly connected with base frame between, and the through mounting slot is opened in base frame, two transmission rollers are rotatably connected in the inside of mounting slot, conveying belt is sleeved between two transmission rollers, the utility model is supported to base frame by moving plate, transmission roller is supported by base frame, conveying belt is driven to rotate by transmission roller, make conveying belt drive ribbon move along support piece, to continue to feed, so that personnel need not manpower feeding, to reduce the sewing difficulty of ribbon, to improve the sewing efficiency of ribbon.

The utility model relates to the technical field of bag sewing equipment, in particular to automatic bag opening edge folding and bag sewing equipment which comprises a bottom frame, a connecting column, an electrical cabinet, a sewing mechanism, a branch frame, a first motor and the like. The underframe is connected with a connecting column; the connecting column is fixedly connected with an electrical box; the connecting column is connected with a sewing mechanism; the connecting column is connected with a branch frame; a first motor is fixedly connected to the connecting column and penetrates through the upper portion of the connecting column to be connected with the sewing mechanism. According to the device, through cooperation of a first pulling rod and a second pulling rod, sample material bags can be stretched, a sample conveying belt does not need to stop working, the working efficiency of sewing is greatly improved, the size of a positioning assembly of the device is smaller than that of sample movable clamping equipment in the prior art, the occupied area of the device is smaller, and the device is convenient to use. And when the position of the device needs to be changed, the device is more flexible and convenient compared with the prior art.

The present application relates to a kind of edge rolling device field, specifically a kind of edge rolling device for bag handle, including roll covering device and sewing machine workbench, the roll covering device is located in sewing machine workbench and is connected with sewing machine workbench, the roll covering device includes adjusting device: still include: with adjusting device connection cloth pulling assembly, the cloth pulling assembly is equipped with two groups and mirror image symmetry is set, the cloth pulling assembly includes side plate, L type socket is fixedly installed in the bottom of side plate both sides, the present application is adjusted by using the spacing between two groups of side plates by site mechanism, to adapt to different specifications of workpiece, while using clamping member makes edge rolling cloth spread full side plate, saves the operation of manual cloth feeding, it is convenient for edge rolling, using cloth pulling assembly completes the edge of workpiece, to solve the problems, such as the low efficiency of existing edge rolling card, cannot continuous work and cannot edge of multiple different specifications of workpiece.

The invention belongs to the technical field of zippers, and particularly relates to an anti-pinch self-locking zipper and a manufacturing method thereof.According to the anti-pinch self-locking zipper and the manufacturing method thereof, an automatic sewing machine is arranged, a motor drives a screw to rotate, and the screw drives a moving table to rotate and move; however, due to the fact that the sliding blocks of the moving tables are in sliding fit with the guide rails of the rack, it is guaranteed that the moving tables stably run along the straight line all the time, moving mechanisms are arranged in front of and behind the sewing units of the rack, the zipper belts and the anti-clamping belts are pressed on the moving tables through pressing rollers, and it is guaranteed that the zipper belts and the anti-clamping belts are located on the same horizontal line during sewing through movement of the front moving table and the rear moving table. Lifting of the lifting frame can drive the pressing roller rotationally connected with the lifting frame through the bearing to ascend and descend, and the downward pressing stroke can be automatically adjusted for zipper belts with different thicknesses such as protrusions with zipper teeth.

The present invention addresses the problem of: preventing the occurrence of fraying of fibers at a cut portion of a string-shaped material; and performing a stable cutting operation. A cutting unit (210) for cutting a string-shaped material connected to an object to be sewn includes a heating member (211) that heat-melts a cut surface of the string-shaped material. In one example, the heating member functions as a cutting member, a gripping member (220) that grips a string-shaped material connected to an object to be sewn from the supply side is provided, and the string-shaped material gripped by the gripping member is brought into contact with the heating member (211), thereby thermally severing the string-shaped material. Since the string-shaped material is thermally severed, heat-melted fibers cool and solidify, and fraying of a cut end is eliminated. As another example, a cutting device (320) for cutting a string-shaped material is provided, and a cut surface of the string-shaped material cut by the cutting device is brought into contact with the heating member (211) to be heat-melted. In addition, gripping parts that respectively grip an upstream side portion and a downstream portion of the cut string-shaped material are provided, and each portion is brought into contact with the heating member in a gripped state.

The utility model discloses a cabling anti-pricking structure, which relates to the technical field of garment processing, and comprises a circular protective ring made of stainless steel, the outer wall of the protective ring is provided with a wearing groove, the wearing groove is matched with the protective ring, and the outer walls of the two sides of the protective ring are respectively provided with a magnetic suction ring. According to the protective ring, the protective rings and the armor pieces are used for protection, a needle head of a sewing machine is prevented from pricking fingers in the raking work process, the wearing grooves formed in the outer walls of the protective rings facilitate wearing of the protective rings, expansion can be achieved according to needs, the protective rings can be used by fingers of different thicknesses conveniently, and the adjacent protective rings can be attracted together through the magnetic attraction rings; no gap exists between the protective rings, most areas of the fingers can be protected conveniently, the nail protecting pieces protect the tail ends of the fingers and prevent the support part from being injured, and the protective rings and the nail protecting pieces are matched with each other, so that the fingers of an operator are protected and prevented from being pricked in the clothes tying process.

The utility model discloses a light shoe tongue positioning mold, which comprises a shoe tongue and an eyelet belt capable of being sewn on the shoe tongue, and comprises a first mold plate, a second mold plate, a third mold plate and a fourth mold plate, the supporting frame is connected with a rotating seat, the rotating seat is provided with a second template, and the second template is provided with a processing groove which can be used for the needle of the sewing machine to move so as to sew and form the eyelet belt and the shoe tongue; the first driving assembly is connected with a sliding seat which can slide in parallel on a plane along with the first driving assembly, and the sliding seat is provided with a plurality of clamping parts which can be clamped into the clamping grooves to enable the sliding seat to be fixedly connected with the first template; and when the first driving assembly is started, the sliding seat can drive the first template to overcome the acting force between the first template and the second template so as to move along a preset track relative to the second template. The utility model provides the positioning die for the light shoe tongue, which is convenient for positioning the shoe tongue and the eyelet belt.

This invention specifically relates to a drive device for controlling the swinging of a button clip in a button-attaching machine, belonging to the field of sewing machine technology. It includes a button clip, and the button clip and drive device transmit driving force through a clip holder. The drive device includes a swing arm with a rotating shaft supporting its swing. A motor is mounted at one end of the swing arm, driving the swing arm to swing back and forth. A connector is mounted at the other end of the swing arm, and the connector is movably connected to the clip holder. The connector transmits driving force to cause the clip holder to swing. The button clip is mounted on the clip holder, causing the clip holder to drive the button clip to swing. This device has a simple structure, saving internal structural space and reducing transmission components. It uses a direct-drive motor to the swing arm to drive the clip holder's swing, saving manufacturing costs. The simplified structure is more stable, with higher drive stability, reduced failure rate, reduced motor load, more efficient power output, and a longer overall service life.

The invention provides a lower thread cutting device of a flat chain seam sewing machine. According to the utility model, the problem that the operator is difficult to understand and inconvenient due to the difference that whether the tension applied to the thread by the thread trapper can be released or not by operating the pedal and operating the presser foot lifting rod due to the presence or absence of the lower thread cutting device can be solved. The lower thread cutting device is provided with a lower thread cutting operation mechanism (5) which enables the thread loosening mechanism (4) and the lower thread cutting mechanism (3) to operate, and a presser foot lifting operation mechanism (6) which does not enable the lower thread cutting mechanism (3) to operate and enables the thread loosening mechanism (4) and the presser foot lifting mechanism (2) to operate. Therefore, the force of the thread trapper (11) can be released by operating the pedal plate with a foot regardless of the presence or absence of the off-line cutting device.

A width adjusting device of a loop nailing machine mainly comprises a fixing support, a feeding mechanism, a cutter mechanism, a material pressing mechanism, a material rolling mechanism, a first adjusting frame and a second adjusting frame, and the first adjusting frame and the second adjusting frame are both connected with the fixing support in a sliding mode and are driven by a first driving piece and a second driving piece which are independent respectively to move transversely. The first material pressing assembly and the first material rolling assembly are arranged on the fixing support, the feeding mechanism, the cutter mechanism and the second material rolling assembly are arranged on the first adjusting frame, and the second material pressing assembly is arranged on the second adjusting frame, so that independent control over the width of the material pressing mechanism is achieved, adjustment of the width of the material pressing mechanism does not affect feeding, the cutter and the material rolling mechanism, and the material pressing efficiency is improved. The defect that in the prior art, width adjustment of a material pressing mechanism is linked with other mechanisms is overcome, influences caused by mutual interference are avoided, and the flexibility, accuracy and stability of the material pressing mechanism during parameter adjustment are improved.

1. Name of the designed product: sewing machine accessory (movable hemming presser foot) 2. Use of the designed product: the designed product is used for the movable hemming presser foot of a sewing machine. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The utility model discloses an automatic little collar sewing machine, including: including: work table is provided with the blanking port, electric screw rod includes output rod, and the output rod end is connected with the push board, sewing machine is provided with sewing head, special draw cylinder includes feeding cavity, conveying chamber and blow pipe, feeding cavity with conveying chamber intercommunication and all are provided with the feeding cavity in the inside, blow pipe penetrates feeding cavity setting and sets up in the one end close to conveying chamber. The utility model can realize little collar automatic conveying feeding in little collar sewing process, and the position that little collar needs sewing is automatically turned over and adjusted after sewing in the process of conveying, and manual turning over adjustment is not needed, and full -automatic processing handles, improve production efficiency and avoid the situation that manual turning over is easy to mis touch and scratch.