CN213173078U

CN213173078U - Open width sewing machine

Info

Publication number: CN213173078U
Application number: CN202021116684.9U
Authority: CN
Inventors: 陈少军
Original assignee: Zhejiang Puxin Intelligent Technology Co ltd
Current assignee: Zhejiang Puxin Intelligent Technology Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-05-11
Anticipated expiration: 2030-06-16

Abstract

The utility model provides an open width sewing machine, its characterized in that: the sewing machine comprises a first sewing head support, a second sewing head support, a sewing head sliding rail, a sewing head beam, a sewing head motor, a sewing assembly, a first needle box and a second needle box, the sewing head motor is arranged on one side of the first sewing head support, the first sewing head support is fixedly connected to the second sewing head support through the sewing head sliding rail, one end of the sewing head beam is connected to the top of the first sewing head support through a support, the other end of the sewing head beam is connected to the top of the second sewing head support through a support, the sewing head sliding rail is provided with the sewing assembly, a sewing head driving wheel is arranged at the output end of the sewing head motor, a fixing wheel is arranged at one end, close to the second sewing head support, of the sewing head sliding rail, the driving wheel, the sewing assembly is connected with the fixing wheel through a chain in sequence, a cloth pressing rod is hinged to the sewing head beam, and the sewing head beam is. The utility model discloses can transport and change cloth through automatic mode, can accomplish the operation alone, great saving the human cost, improved the work efficiency of seam head.

Description

Open width sewing machine

Technical Field

The utility model belongs to seam machine field especially relates to an open width seam machine.

Background

The sewing machine sews the cloth ends of two rolls of cloth together, when using the open width sewing machine, the common method in the past is to move each roll of cloth to the side of the sewing machine by manual mode, then install the cloth end of each roll of cloth to the lower side of the open width sewing machine, then install the cloth end of another roll of cloth to the upper side of the open width sewing machine, sew the two rolls of cloth together to form a roll of cloth by the open width sewing machine, wherein the transportation of the roll of cloth, and the change of the roll of cloth are all through manual mode, because the weight of the roll of cloth is bigger, about 30kg, the operation is clearance type transportation rather than continuous type transportation, the labor cost is higher, the time and labor are wasted, and the sewing machine has extremely low efficiency and poor sewing quality.

Disclosure of Invention

In view of this, the utility model discloses aim at providing multi-functional open width seam head all-in-one, can transport and change cloth through automatic mode, can accomplish the operation alone, great saving the human cost, improved the work efficiency who sews the head.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

an open width sewing machine comprises a first sewing support, a second sewing support, a sewing slide rail, a sewing beam, a sewing motor, a sewing component, a first needle box and a second needle box,

one side of the first sewing head bracket is provided with a sewing head motor, the first sewing head bracket is fixedly connected to the second sewing head bracket through a sewing head sliding rail, one end of the sewing head beam is connected to the top of the first sewing head bracket through a first support, the other end of the sewing head beam is connected to the top of the second sewing head bracket through a second support, the sewing head sliding rail is provided with a sewing assembly, the output end of the sewing head motor is provided with a sewing head driving wheel, one end of the sewing head sliding rail, which is close to the second sewing head bracket, is provided with a fixed wheel, the driving wheel, a driven wheel and the fixed wheel of the sewing assembly are sequentially connected,

two ends of the cloth pressing rod are hinged to two ends of the sewing head beam respectively, a cloth pressing cylinder is arranged at each of the two ends of the cloth pressing rod respectively, a sliding groove is formed in the upper surface of the sewing head beam, and the first needle box and the second needle box are fixedly mounted to the sliding groove of the sewing head beam through bolts respectively.

Further, the sewing assembly comprises a sewing machine, a moving table and a wire coil supporting rod, the cross section of the moving table is of a U-shaped structure, a plurality of pulleys are arranged at the top in the moving table, a driven wheel is arranged on one side in the moving table, the plurality of pulleys are connected with a sewing head sliding rail to realize sliding connection of the moving table and the sewing head sliding rail, and the wire coil supporting rod is fixedly installed on one side, close to a sewing head support, of the sewing machine.

Furthermore, one side of the sewing machine close to the second sewing head support is provided with a wheel set, the wheel set comprises a wheel carrier, a first wheel and a second wheel, the first wheel and the second wheel are fixedly mounted on the wheel carrier, and the second wheel is arranged below the first wheel.

Furthermore, the one end that the seam first slide rail is close to a seam first support is equipped with fixed the knot No. one, and the one end that the seam first roof beam is close to No. two seam first supports is equipped with fixed the knot No. two, and matte area one end is connected to fixed the knot No. two, and a wheel and No. two wheels are walked around in proper order to the matte area other end, and fixed connection is to fixed the knot No. one.

Further, No. one needle box, No. two needle box structures are the same, and No. one needle box includes mounting panel, needle groove, fixed needle, needle lid, and the mounting panel upper surface is equipped with the needle groove, and the needle inslot is equipped with a plurality of fixed needles, and needle lid one end articulates to the mounting panel, and the mounting panel bottom is equipped with protruding piece, and protruding piece sets up in the spout of seam head roof beam, and the mounting panel passes through the bolt and realizes the fixed connection of a needle box of mounting panel and seam head slide rail.

Furthermore, two wire clamping plates are arranged at the upper part of the mobile station.

Furthermore, one surface of the cloth pressing rod, which is contacted with the seam head beam, is provided with foamed silica gel.

Further, the sewing machine is MO-6804S.

Compared with the prior art, the open width sewing machine of the utility model has the following advantages:

(1) the utility model discloses replaced the manpower with automatic mode, improved the working method of sewing machine, saved the human cost, improved the work efficiency of sewing.

(2) The utility model discloses upgrade the conveyer belt, set up the dog that the distance is the same on the conveyer belt, the yardage roll can be even place on the conveyer belt, avoid rolling to when carrying out the conveying, also fine the accuse to the transmission distance, the convenient calculation is used manpower sparingly.

(3) The utility model discloses utilize open width seam machine to sew up two cloths, set up the matte surface area, can prevent dropping of cloth.

(4) The utility model discloses utilize the compress pole to carry out the pressfitting to the cloth head, installed the compress cylinder in compress pole both sides simultaneously, prevent that the compress pole is not hard up.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a front schematic view of an open width sewing machine according to an embodiment of the present invention;

FIG. 2 is a back view of the flat width sewing machine according to the embodiment of the present invention;

FIG. 3 is a schematic view of a sewing assembly according to an embodiment of the present invention;

fig. 4 is a schematic view of a wheel set according to an embodiment of the present invention;

fig. 5 is a schematic view of a first needle box according to an embodiment of the present invention.

Description of reference numerals:

61. a first sewing bracket; 62. a second stitch bracket; 63. a sewing motor; 631. a sewing driving wheel; 64. a sewing head slide rail; 641. a fixed wheel; 65. a seam beam; 66. a sewing assembly; 661. a sewing machine; 662. a mobile station; 663. a wire coil support rod; 664. a driven wheel; 67. a wheel set; 671. a wheel carrier; 672. a first wheel; 673. a second wheel; 68. a first needle magazine; 681. mounting a plate; 682. a needle groove; 683. a fixing pin; 684. a needle cover; 69. a second needle box; 610. a cloth pressing rod; 611. a first fixing buckle; 612. A second fixing buckle; 613. a rough surface belt; 614. a cloth pressing cylinder.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

A multifunctional open width sewing integrated machine is shown in figures 1 to 5 and comprises a first conveying mechanism, a second conveying mechanism, a first support and a second support, wherein the first conveying mechanism, the second conveying mechanism, the first support and the second support are sequentially and adjacently arranged, the first conveying mechanism is arranged on one side of the second conveying mechanism, the conveying direction of the first conveying mechanism is perpendicular to the conveying direction of the second conveying mechanism, a unwinding groove formed by a plurality of long rollers is formed in the bottom of the first support, an open width sewing machine is arranged in the middle of the first support, a cloth lifting roller and a cloth lifting motor for driving the cloth lifting roller are arranged at the top of the first support, a buffer groove is formed between the first support and the second support, a centering roller is arranged on the inner wall of the top of the second support, a support frame is arranged on the outer wall of the second support, and is provided with a cloth falling roller and a cloth falling motor for driving the cloth falling roller,

the first support side wall is provided with a controller, the cloth lifting motor and the cloth dropping motor are in signal connection with the controller, a first infrared sensor is arranged in the unwinding groove and in signal connection with the controller, the first infrared sensor is TBJ-DN in model, and the first infrared sensor is used for detecting whether a cloth roll exists in the unwinding groove.

The first transmission mechanism comprises a first transmission frame, the conveying belt is characterized in that a plurality of supporting seats are arranged on two sides of the bottom of the conveying frame and used for supporting the conveying frame, the conveying process is stable, a first driving roller and a plurality of parallel first driven rollers are arranged between the conveying frames, the first driving roller and the plurality of first driven rollers are connected through a chain, a first driving motor is arranged at the end part of the conveying frame, the output end of the first driving motor is fixedly connected to the first driving roller, the conveying belt is sleeved outside the first driving roller and the first driven rollers, one end, close to a second transmission mechanism, of the conveying mechanism is provided with a second infrared sensor, the second infrared sensor and the first driving motor are both in signal connection with a controller, the type of the second infrared sensor is TBJ-DN, and the second infrared sensor is used for detecting whether a cloth roll is conveyed to the second conveying mechanism or not so as to carry out next operation.

The conveying belt is provided with a plurality of stop blocks, the distance between every two stop blocks is equal, and the limiting is used for limiting the cloth roll placed on the conveying belt and preventing the cloth roll from rolling; and the stop blocks with the same distance can ensure that the distance between the yardage rolls is also equal, so that the moving distance of the conveyor belt is convenient to control, and the yardage rolls enter the second conveying mechanism from the first conveying mechanism.

No. two transport mechanism include No. two conveying framves, No. two conveying framves middle parts are equipped with two kicker mechanisms and a turn over cloth mechanism, be equipped with a plurality of driven vollers No. two between two kicker mechanisms and two kicker mechanism both sides, No. two power transmission frame tip is equipped with a drive roll No. two and is used for driving No. two drive motor of No. two drive rolls, connect through the chain between No. two drive rolls and a plurality of driven voller, two kicker mechanisms are used for holding up the yardage roll, then install the cloth head to open width seam head machine.

The top roller mechanism comprises a mounting seat, a top roller frame, a top roller cylinder, a top roller and two top rollers, the mounting seat is fixedly mounted on the second transmission frame, the top roller frame is mounted on the mounting seat through the top roller cylinder, the top roller frame is provided with the first top roller and the second top roller which are arranged in parallel, the axial directions of the first top roller and the second top roller are perpendicular to the axial direction of the second driven roller, and the top roller cylinder is in signal connection with the controller. The yardage roll is placed between a top roller and a second top roller, when being convenient for make up the leftover of cloth, can make the yardage roll rotate, improves collection speed.

The cloth turning mechanism comprises a cloth turning cylinder, a connecting rod and a plurality of turning plates, the connecting rod penetrates through the middle of each turning plate to realize fixed connection of the turning plates and the connecting rod, the end part of each turning plate is hinged to the inner wall of one side of the second transmission frame, the turning plate cylinder is fixedly mounted on the inner wall of the other side of the second transmission frame, the output end of the turning plate cylinder is fixedly connected to the connecting rod, the turning plate cylinder is in signal connection with the controller, and the turning plate is used for turning parts to an unwinding groove and recycling a winding drum for winding cloth.

The open width sewing machine comprises a first sewing support 61, a second sewing support 62, a sewing slide rail 64, a sewing beam 65, a sewing motor 63, a sewing component 66, a first needle box 68 and a second needle box 69,

one side of the first sewing head bracket 61 is provided with a sewing head motor 63, the first sewing head bracket 61 is fixedly connected to the second sewing head bracket 62 through a sewing head sliding rail 64, one end of a sewing head beam 65 is connected to the top of the first sewing head bracket 61 through a first support, the other end of the sewing head beam 65 is connected to the top of the second sewing head bracket 62 through a second support, the sewing head sliding rail 64 is provided with a sewing assembly 66, the output end of the sewing head motor 63 is provided with a driving wheel, one end of the sewing head sliding rail 64 close to the second sewing head bracket 62 is provided with a fixed wheel 641, and the driving wheel, a driven wheel 664 and the fixed wheel 641 of the sewing assembly 66 are sequentially connected through,

two ends of the cloth pressing rod 610 are hinged to two ends of the sewing head beam 65 respectively, two ends of the cloth pressing rod 610 are provided with a cloth pressing cylinder 614 respectively, the cloth pressing rod 610 is used for fixing a cloth head, and the cloth pressing cylinder 614 exerts an acting force on the cloth pressing rod 610 so that the cloth pressing rod 610 does not fall down when opened; the upper surface of the sewing beam 65 is provided with a sliding groove, the first needle box 68 and the second needle box 69 are fixedly mounted to the sliding groove of the sewing beam 65 through bolts respectively, and the distance between the first needle box 68 and the second needle box 69 can be adjusted according to the width of cloth.

The sewing assembly 66 comprises a sewing machine 661, a moving platform 662 and a wire coil supporting rod 663, the cross section of the moving platform 662 is of a U-shaped structure, a plurality of pulleys are arranged at the top inside the moving platform 662, a driven wheel 664 is arranged on one side inside the moving platform 662, the plurality of pulleys are connected with the sewing head slide rail 64 to realize the sliding connection of the moving platform 662 and the sewing head slide rail 64, the wire coil supporting rod 663 is fixedly arranged on one side, close to the first sewing head support 61, of the sewing machine 661, and the wire coil supporting rod 663 can be used for storing a woven wire coil.

One side of the sewing machine 661 close to the second stitch head support 62 is provided with a wheel set 67, the wheel set 67 comprises a wheel frame 671, a first wheel 672 and a second wheel 673, the first wheel 672 and the second wheel 673 are fixedly installed on the wheel frame 671, and the second wheel 673 is arranged below the first wheel 672.

One end of the sewing head sliding rail 64 close to the first sewing head support 61 is provided with a first fixing buckle 611, one end of the sewing head beam 65 close to the second sewing head support 62 is provided with a second fixing buckle 612, one end of the rough surface belt 613 is connected to the second fixing buckle 612, the other end of the rough surface belt 613 sequentially bypasses the first wheel 672 and the second wheel 673 and is fixedly connected to the first fixing buckle 611, the rough surface belt 613 is used for placing cloth, friction between the rough surface belt 613 and the cloth can be increased due to the rough surface of the rough surface belt 613, the cloth is prevented from falling off, the rough surface belt 613 passes through the wheel set 67, the wheel set 67 can move along with the sewing component 66, and the sewn cloth head is arranged on the right side of the wheel set 67 and is similar to the working mode of a zipper until sewing is finished.

The first needle box 68 and the second needle box 69 have the same structure, the first needle box 68 comprises a mounting plate 681, a needle groove 682, a fixing needle 683 and a needle cover 684, the upper surface of the mounting plate 681 is provided with the needle groove 682, a plurality of fixing needles 683 are arranged in the needle groove 682, one end of the needle cover 684 is hinged to the mounting plate 681, the bottom of the mounting plate 681 is provided with a convex block, the convex block is arranged in a chute of the stitch beam 65, the mounting plate 681 is fixedly connected with the stitch sliding rail 64 through a bolt, the number of the fixing needles 683 is root, when the needle cover 684 is not used, the needle cover 684 is closed, a worker is prevented from being accidentally injured, during use, the needle cover 684 is opened, and two ends of a cloth are respectively fixed on the first needle box 68 and the second needle box 69.

Two thread jamming plates are arranged at the upper part of the movable table 662 and used for limiting the thread of the sewing head and preventing the position of the thread from deviating.

The one side of cloth pressing rod 610 and the contact of seam roof beam 65 is equipped with foaming silica gel, when cloth pressing rod 610 is fashionable to cloth, can increase and the cloth between the friction, prevent to cause the damage to the cloth simultaneously.

The sewing machine 661 is MO-6804S; the controller is a PLC and is used for controlling the orderly proceeding of all components.

A multifunctional open-width sewing integrated machine,

example (b): a cloth roll is orderly passed through a cloth dropping roller, a centering roller and a cloth lifting roller in advance, and a cloth head is arranged above the hemming machine; the yardage roll is placed on a conveying belt of the first conveying mechanism, the yardage roll is conveyed from the first conveying mechanism to the second conveying mechanism,

the second infrared sensor detects that the cloth roll falls on the second conveying mechanism, then information is transmitted to the controller, the first conveying mechanism stops working, the controller controls the second driving motor to work to drive the second driven roller to rotate to convey the cloth roll to the upper part of the top roller mechanism, when the second infrared sensor detects that the cloth roll reaches the upper part of the top roller mechanism, the controller controls the second driving motor to stop working and then controls the top roller cylinder to work, so that the cloth roll is jacked up,

at the moment, after the second infrared sensor detects that no cloth exists on the second conveying mechanism, the information is transmitted to the controller, the controller controls the first conveying mechanism to continuously convey the cloth to the second conveying mechanism, and when the cloth falls into the second conveying mechanism, the first conveying mechanism stops working and repeats the operation;

the working personnel find the cloth ends of the cloth jacked by the jacking roller mechanism and then fixedly install the cloth ends on a first needle box 68 and a second needle box 69 of the open width sewing machine, the working personnel fixedly install the cloth ends of the cloth arranged in advance on the first needle box 68 and the second needle box 69, the cloth ends of the two pieces of cloth are fixed on the first needle box 68 and the second needle box 69 at the moment, and the working personnel press a button for controlling the cloth pressing cylinder 614 to press the cloth ends by the cloth pressing rod 610; the worker opens the sewing machine 661 and the sewing motor 63, the sewing machine 661 starts to work, and moves from left to right under the action of the sewing motor 63 to sew the cloth ends of the two pieces of cloth; the sewing machine 661 stops working when the end touches the limit switch; after the edge sewing is finished, the worker controls the cloth pressing cylinder 614 to work, lifts the cloth pressing rod 610, and takes out the cloth from the first needle box 68 and the second needle box 69;

the controller controls the top roller mechanism to descend, the cloth falls back to the second conveying mechanism again, the second infrared sensor detects the cloth, the controller controls the cloth turning mechanism to turn the cloth into the unwinding groove, a worker turns on switches of the cloth lifting motor and the cloth dropping motor, the cloth lifting roller and the cloth dropping roller start to work, and meanwhile the sewing machine 661 moves to the left initial position;

the infrared sensor that moves back in the book inslot detects cloth and has been collected by carrying cloth roller and cropping roller and finish, when moving back the book inslot and not having cloth, the controller can control and carry cloth motor and cropping motor stop work, carry the cloth roller simultaneously and can revolve two seconds, prevent that the cloth head is too short, conveniently hang the needle with lower piece of cloth, the buffer memory inslot also is equipped with infrared sensor, infrared sensor detects when not having cloth, the cropping roller stops, continue cropping when having cloth, the cloth that will collect the completion at last transports the storage department.

Example (b): the first conveying mechanism is placed in the middle of the sewing integrated machine, and the second conveying mechanism is replaced by a cloth turning mechanism,

the cloth turning mechanism comprises a first guide rail, a second guide rail, a plate turning frame and a plate turning cylinder, wherein four idler wheels are arranged at the bottom of the plate turning frame, the plate turning frame is placed on the first guide rail and the second guide rail through the idler wheels, the two idler wheels are connected through a connecting rod, a plate turning driven wheel 664 is fixedly installed in the middle of the connecting rod, a plate turning motor is arranged on the inner wall of the plate turning frame, a plate turning driving wheel is arranged at the output end of the plate turning motor, the plate turning driving wheel is connected with the plate turning driven wheel 664 through a chain, a fixing plate is arranged in the middle of one side of the plate turning frame, which is close to the cylinder sewing machine, the plate turning cylinder is fixedly installed on the fixing plate, the output end of the plate turning cylinder is fixedly connected to a plate turning rod, two sides of the plate turning frame are respectively provided, The turning plate motor and the turning plate cylinder are both connected to the controller through signals,

when the first conveying mechanism conveys the cloth rolls to the cloth turning mechanism, the third infrared sensor detects the cloth rolls falling into the cloth turning mechanism, and when the third infrared sensor detects that the first conveying mechanism does not have the cloth rolls, the controller controls the first conveying mechanism to stop working, and simultaneously controls the turning plate motor to work, so that the turning plate frame is driven to move towards the unwinding groove.

The working personnel find the cloth ends of the cloth and then fixedly install the cloth ends on a first needle box 68 and a second needle box 69 of the open width sewing machine, the working personnel fixedly install the cloth ends of the cloth which is arranged in advance on the first needle box 68 and the second needle box 69, the cloth ends of the two pieces of cloth are fixed on the first needle box 68 and the second needle box 69 at the moment, and the working personnel press a button for controlling the cloth pressing cylinder 614 to press the cloth ends by the cloth pressing rod 610; the worker opens the sewing machine 661 and the sewing motor 63, the sewing machine 661 starts to work, and moves from left to right under the action of the sewing motor 63 to sew the cloth ends of the two pieces of cloth; the sewing machine 661 stops working when the end touches the limit switch; after the edge sewing is finished, the worker controls the cloth pressing cylinder 614 to work, lifts the cloth pressing rod 610, and takes out the cloth from the first needle box 68 and the second needle box 69;

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An open width sewing machine which is characterized in that: comprises a first sewing support, a second sewing support, a sewing slide rail, a sewing beam, a sewing motor, a sewing component, a first needle box and a second needle box,

2. The open width sewing machine according to claim 1, characterized in that: the sewing assembly comprises a sewing machine, a moving table and a wire coil supporting rod, the cross section of the moving table is of a U-shaped structure, a plurality of pulleys are arranged at the top in the moving table, a driven wheel is arranged on one side in the moving table, the plurality of pulleys are connected with a sewing head sliding rail to realize sliding connection of the moving table and the sewing head sliding rail, and the wire coil supporting rod is fixedly installed on one side, close to a sewing head support, of the sewing machine.

3. The open width sewing machine according to claim 1, characterized in that: one side of the sewing machine close to the second sewing head support is provided with a wheel set, the wheel set comprises a wheel carrier, a first wheel and a second wheel, the first wheel and the second wheel are fixedly mounted on the wheel carrier, and the second wheel is arranged below the first wheel.

4. The open width sewing machine according to claim 3, characterized in that: one end of the sewing head sliding rail, which is close to the first sewing head support, is provided with a first fixing buckle, one end of the sewing head beam, which is close to the second sewing head support, is provided with a second fixing buckle, one end of the rough surface belt is connected to the second fixing buckle, the other end of the rough surface belt sequentially bypasses the first wheel and the second wheel, and the rough surface belt is fixedly connected to the first fixing buckle.

5. The open width sewing machine according to claim 1, characterized in that: the first needle box and the second needle box are identical in structure, the first needle box comprises a mounting plate, a needle groove, a fixing needle and a needle cover, the needle groove is formed in the upper surface of the mounting plate, the fixing needle is arranged in the needle groove, one end of the needle cover is hinged to the mounting plate, a protruding block is arranged at the bottom of the mounting plate and arranged in a chute of the sewing head beam, and the mounting plate is fixedly connected with the first needle box and the sewing head slide rail through bolts.

6. The open width sewing machine according to claim 2, characterized in that: two wire clamping plates are arranged at the upper part of the mobile station.

7. The open width sewing machine according to claim 2, characterized in that: and one surface of the cloth pressing rod, which is contacted with the seam head beam, is provided with foamed silica gel.

8. The open width sewing machine according to claim 2, characterized in that: the sewing machine is MO-6804S.