阅读说明：本技术 一种电动缝纫机保养上油装置 (Electric sewing machine maintenance oiling device ) 是由 姚丹翔 于 2020-12-28 设计创作，主要内容包括：本发明公开了一种电动缝纫机保养上油装置,包括机壳,所述机壳的中部设有传动腔,所述传动腔内设有传动机构,所述传动腔内设有转动机构,所述传动腔右侧设有吸附腔,所述吸附腔内设有开板机构,所述传动腔下侧设有转动腔,所述转动腔内设有升降机构,所述传动腔左侧设有清扫腔,所述清扫腔内设有清扫上油机构,所述传动腔前侧设有夹紧腔,所述夹紧腔内设有夹紧机构,本发明结构简单,操作便捷,本发明在使用时,能够自动将打开缝纫机的针板,之后对内部的棉絮进行清理,之后能对内部梭轮的梭心位置进行上油保养,使用机器相较于传统的手工保养,节约了成本,而且速度也更叫快速,更有效率。(The invention discloses a maintenance oiling device of an electric sewing machine, which comprises a machine shell, wherein a transmission cavity is arranged in the middle of the machine shell, a transmission mechanism is arranged in the transmission cavity, a rotating mechanism is arranged in the transmission cavity, an adsorption cavity is arranged on the right side of the transmission cavity, a plate opening mechanism is arranged in the adsorption cavity, a rotating cavity is arranged on the lower side of the transmission cavity, a lifting mechanism is arranged in the rotating cavity, a cleaning cavity is arranged on the left side of the transmission cavity, a cleaning oiling mechanism is arranged in the cleaning cavity, a clamping cavity is arranged on the front side of the transmission cavity, and a clamping mechanism is arranged in the clamping cavity. And the speed is faster and more efficient.)

1. The utility model provides an electric sewing machine maintains device that oils, includes the casing, its characterized in that: the middle part of the casing is provided with a transmission cavity, the transmission cavity is internally provided with a transmission mechanism, the transmission cavity is internally provided with a rotating mechanism, the right side of the transmission cavity is provided with an adsorption cavity, the adsorption cavity is internally provided with a plate opening mechanism, the lower side of the transmission cavity is provided with a rotating cavity, the rotating cavity is internally provided with a lifting mechanism, the left side of the transmission cavity is provided with a cleaning cavity, the cleaning cavity is internally provided with an oil cleaning mechanism, the front side of the transmission cavity is provided with a clamping cavity, the clamping cavity is internally provided with a clamping mechanism, the plate opening mechanism comprises a ventilating cavity which is positioned on the upper inner wall of the left side of the adsorption cavity and penetrates through the casing, the upper inner wall of the right side of the adsorption cavity is provided with an exhaust cavity penetrating through the casing, the exhaust cavity is internally provided with a fan, the left inner wall of the adsorption cavity is provided with a longitudinal moving cavity with, a lower pull spring is connected between the lower end face of the longitudinal moving block and the lower inner wall of the longitudinal moving cavity, a fan power supply block connected with the fan is arranged on the upper inner wall of the longitudinal moving cavity, a connecting rod is arranged at the right end of the longitudinal moving block, a transition block is arranged at the right end of the connecting rod, a top block is arranged on the upper end face of the transition block, a sealing block is arranged at the upper end of the top block, a test rod is arranged at the lower end of the transition block, a sealing ring is surrounded at the lower side of the adsorption cavity, an unlocking cavity is arranged at the right side of the adsorption cavity, a driven shaft is rotatably arranged between the upper inner wall and the lower inner wall of the middle part of the unlocking cavity, a driven gear is arranged at the upper end of the driven shaft, a twisting shaft positioned at the left side of the driven shaft is rotatably arranged on the upper inner wall at the left side of the starting cavity, a twisting gear meshed with the driven, the connecting sleeve, connecting sleeve lower extreme sliding connection is equipped with the slide bar, the slide bar lower extreme is equipped with the connection pad, the up end of connection pad with be connected with between the lower terminal surface of twisting disk and twist and move the spring, be equipped with on the lower terminal surface of connection pad and stretch out the screwdriver in chamber of unlocking, the driven shaft lower extreme is equipped with driven pulley, the right side in chamber of unlocking be equipped with the same structure in chamber left side of unlocking.

2. The electric sewing machine maintenance oiling device of claim 1, wherein: the cleaning oiling mechanism comprises a cleaning shaft positioned on the upper inner wall on the right side of the cleaning cavity, the upper end of the cleaning shaft is provided with a cleaning belt pulley, the lower end of the cleaning shaft is provided with a cleaning disc, the lower end of the cleaning disc is provided with a cleaning connecting rod, a cleaning block extending out of the casing is arranged in the cleaning cavity in a sliding manner, the lower end of the cleaning block is provided with a brush, the left end face of the rear side of the cleaning block is provided with an extending cavity with a left opening, the extending cavity is provided with an extending block, the right side of the extending block is provided with a limiting block, the left end face of the front end of the cleaning block is provided with a structure the same as the rear side, an extending shaft is arranged between the two extending blocks, the upper end of the cleaning block is provided with a moving plate, the moving plate is provided with a moving cavity, the cleaning connecting rod penetrates through the moving cavity, the, a connecting shaft is rotatably arranged between the front inner wall and the rear inner wall of the connecting cavity, a rotating rod is arranged on the connecting shaft, the right end of the rotating rod is rotatably connected with the projecting shaft, a sliding cavity is arranged on the left inner wall of the upper oil cavity, a sliding magnet is arranged in the sliding cavity, a sliding electromagnet is arranged at the lower end of the sliding cavity, a sliding rod is arranged at the right end of the sliding magnet, an oil feeding block is arranged at the right end of the sliding rod, an oil storage cavity is arranged in the oil feeding block, a transverse moving cavity with a right opening is arranged on the right end face of the upper side of the oil feeding block, a transverse moving connecting lug is arranged in the transverse moving cavity, the transverse moving connecting lug is rotatably connected with the rotating rod through a connecting shaft, an oil outlet pipe is arranged at the lower end of the upper oil block, an expansion block which expands outwards is arranged in the middle of the oil outlet pipe, and an annular pipe is arranged on the lower inner wall of the upper oil cavity, and the oil outlet pipe extends out of the casing between the annular pipes.

3. The electric sewing machine maintenance oiling device according to claim 2, characterized in that: drive mechanism is including being located drive motor on the inner wall on the transmission chamber, the drive motor lower extreme rotates and is equipped with the transmission shaft, transmission shaft upper end is equipped with transmission pulley, go up transmission pulley with clean belt pulley transmission and connect, the transmission shaft upper end is equipped with and is located go up the well transmission pulley of transmission pulley downside, well transmission pulley with driven pulley transmission connects, the transmission shaft middle part is equipped with down transmission pulley, transmission shaft lower extreme friction connection is equipped with the rope winding wheel, be connected with the one end of stay cord on the rope winding wheel, be equipped with the downward and annular chamber that the angle is two hundred seventy degrees of opening on the terminal surface under the rope winding wheel, be equipped with on the inner wall under the transmission chamber and stretch into the gag lever post in the annular chamber.

4. The electric sewing machine maintenance oiling device of claim 1, wherein: elevating system establishes including rotating on the chamber upper inner wall and the upside has the elevator of tooth, be equipped with the lift chamber on the lower inner wall of elevator, be equipped with the lifting rack on the inner wall of lift chamber left side, the lift intracavity slides and is equipped with the sill bar, be equipped with the opening gear chamber left on the left end face of sill bar, be equipped with elevator motor on the inner wall behind the gear chamber, the elevator motor front end is equipped with the lift axle, the lift epaxial be equipped with lifting rack intermeshing's lifting gear, the sill bar lower extreme is equipped with the base.

5. The electric sewing machine maintenance oiling device according to claim 4, characterized in that: slewing mechanism is including being located axis of rotation on the inner wall under the transmission chamber right side, the axis of rotation upper end is equipped with the rotation belt pulley, rotate the belt pulley with transmission belt pulley transmission connects down, axis of rotation lower extreme friction connect be equipped with elevator upside tooth intermeshing's rotating gear, be equipped with the screens chamber under the rotating gear on the terminal surface, be equipped with the ascending spacing chamber of opening on the inner wall under the transmission chamber right side, spacing chamber lower extreme is equipped with spacing electro-magnet, spacing intracavity is equipped with and stretches into the screens piece of screens intracavity, the lower terminal surface of screens piece with be connected with spacing spring between the up end of spacing electro-magnet.

6. The electric sewing machine maintenance oiling device of claim 1, wherein: the clamping mechanism comprises a clamping cavity located on the lower inner wall of the front side of the casing, a pulling cavity with a forward opening is formed in the rear inner wall of the clamping cavity, a pulling block is arranged in the pulling cavity, a movable clamping block is arranged at the lower end of the pulling block, a pulling spring is arranged between the rear end face of the labor block and the rear inner wall of the labor cavity, the front end of the pulling block is connected with the other end of the pull rope, and a fixed clamping block is arranged on the lower end face of the front side of the casing.

Technical Field

The invention relates to the field of knitting machines, in particular to a maintenance and oiling device for an electric sewing machine.

Background

The knitting machine is invented by a pasturage in the United kingdom in the first 1589 years as a machine for knitting fabrics, and after the industrial revolution in the mid-eighteenth century, the invention and the development of sewing machines are promoted by the mass production of the textile industry, and up to 2004, the number of sewing machine manufacturers in China is as much as 600, and the number of parts manufacturers is as much as 1000;

at present, when the sewing machine is maintained, cotton wool inside the sewing machine is cleaned after a needle plate is opened manually, and finally the shuttle wheel can be oiled, so that the manual operation is slow, and more human resources are needed to increase the cost.

Disclosure of Invention

The invention aims to solve the technical problem of providing an electric sewing machine maintenance oiling device, which solves the problems that maintenance oiling needs to be carried out on a sewing machine manually and the like, and realizes that a machine automatically maintains and oils the sewing machine.

The invention is realized by the following technical scheme.

The invention relates to a maintenance oiling device of an electric sewing machine, which comprises a machine shell, wherein a transmission cavity is arranged in the middle of the machine shell, a transmission mechanism is arranged in the transmission cavity, a rotating mechanism is arranged in the transmission cavity, an adsorption cavity is arranged on the right side of the transmission cavity, a plate opening mechanism is arranged in the adsorption cavity, a rotating cavity is arranged on the lower side of the transmission cavity, a lifting mechanism is arranged in the rotating cavity, a cleaning cavity is arranged on the left side of the transmission cavity, a cleaning oiling mechanism is arranged in the cleaning cavity, a clamping cavity is arranged on the front side of the transmission cavity, a clamping mechanism is arranged in the clamping cavity, the plate opening mechanism comprises a ventilating cavity which is positioned on the upper inner wall of the left side of the adsorption cavity and penetrates through the machine shell, an exhaust cavity penetrating through the machine shell is arranged on the upper inner wall of the right side of the adsorption cavity, a fan is arranged in the exhaust cavity, a longitudinal, an external power supply block connected with a power supply is arranged on the upper end face of the longitudinal moving block, a pull-down spring is connected between the lower end face of the longitudinal moving block and the lower inner wall of the longitudinal moving cavity, a fan power supply block connected with the fan is arranged on the upper inner wall of the longitudinal moving cavity, a connecting rod is arranged at the right end of the longitudinal moving block, a transition block is arranged at the right end of the connecting rod, a top block is arranged on the upper end face of the transition block, a sealing block is arranged at the upper end of the top block, a testing rod is arranged at the lower end of the transition block, a sealing ring is enclosed around the lower side of the adsorption cavity, an unlocking cavity is arranged on the right side of the adsorption cavity, a driven shaft is rotatably arranged between the upper inner wall and the lower inner wall of the middle part of the unlocking cavity, a driven gear is arranged at the upper end of the driven shaft, a screwing shaft positioned on the, the improved lock is characterized in that a twisting disk is connected to the lower end face of the twisting shaft, a connecting sleeve is arranged at the lower end of the twisting disk, the lower end of the connecting sleeve is slidably connected with a sliding rod, a connecting disk is arranged at the lower end of the sliding rod, a twisting spring is connected between the upper end face of the connecting disk and the lower end face of the twisting disk, a screwdriver extending out of the unlocking cavity is arranged on the lower end face of the connecting disk, a driven belt pulley is arranged at the lower end of the driven shaft, and the right side of the unlocking cavity is provided with a structure the same as the left side of the unlocking.

Further, the cleaning and oiling mechanism comprises a cleaning shaft positioned on the upper inner wall on the right side of the cleaning cavity, the upper end of the cleaning shaft is provided with a cleaning belt pulley, the lower end of the cleaning shaft is provided with a cleaning disc, the lower end of the cleaning disc is provided with a cleaning connecting rod, a cleaning block extending out of the casing is arranged in the cleaning cavity in a sliding manner, the lower end of the cleaning block is provided with a brush, the left end face of the rear side of the cleaning block is provided with an extending cavity with a left opening, an extending block is arranged in the extending cavity, the right side of the extending block is provided with a limiting block, the left end face of the front end of the cleaning block is provided with a structure the same as the rear side, an extending shaft is arranged between the two extending blocks, the upper end of the cleaning block is provided with a movable plate, the movable plate is provided with a movable cavity, the cleaning connecting rod penetrates through the movable cavity, the left, a connecting shaft is rotatably arranged between the front inner wall and the rear inner wall of the connecting cavity, a rotating rod is arranged on the connecting shaft, the right end of the rotating rod is rotatably connected with the projecting shaft, a sliding cavity is arranged on the left inner wall of the upper oil cavity, a sliding magnet is arranged in the sliding cavity, a sliding electromagnet is arranged at the lower end of the sliding cavity, a sliding rod is arranged at the right end of the sliding magnet, an oil feeding block is arranged at the right end of the sliding rod, an oil storage cavity is arranged in the oil feeding block, a transverse moving cavity with a right opening is arranged on the right end face of the upper side of the oil feeding block, a transverse moving connecting lug is arranged in the transverse moving cavity, the transverse moving connecting lug is rotatably connected with the rotating rod through a connecting shaft, an oil outlet pipe is arranged at the lower end of the upper oil block, an expansion block which expands outwards is arranged in the middle of the oil outlet pipe, and an annular pipe is arranged on the lower inner wall of the upper oil cavity, and the oil outlet pipe extends out of the casing between the annular pipes.

Further, drive mechanism is including being located drive motor on the inner wall on the transmission chamber, the drive motor lower extreme rotates and is equipped with the transmission shaft, the transmission shaft upper end is equipped with transmission belt pulley, go up transmission belt pulley with clean belt pulley transmission and connect, the transmission shaft upper end is equipped with and is located go up the well transmission belt pulley of transmission belt pulley downside, well transmission belt pulley with driven pulley transmission connects, the transmission shaft middle part is equipped with down transmission belt pulley, transmission shaft lower extreme friction connection is equipped with the rope winding wheel, be connected with the one end of stay cord on the rope winding wheel, be equipped with the annular chamber that the opening is decurrent and the angle is two hundred seventy degrees on the terminal surface under the rope winding wheel, be equipped with on the inner wall under the transmission chamber and stretch into the gag lever.

Further, elevating system establishes including rotating on the chamber upper inner wall and the upside has the elevator of tooth, be equipped with the lift chamber on the lower inner wall of elevator, be equipped with the lifting rack on the inner wall of the left side of lift chamber, it is equipped with the sill bar to slide in the lift chamber, be equipped with the opening gear chamber to the left on the left end face of sill bar, be equipped with elevator motor on the inner wall behind the gear chamber, the elevator motor front end is equipped with the lift axle, the epaxial lifting gear that is equipped with lifting rack intermeshing, the sill bar lower extreme is equipped with the base.

Further, slewing mechanism is including being located the axis of rotation on the inner wall under the transmission chamber right side, the axis of rotation upper end is equipped with the rotation belt pulley, rotate the belt pulley with transmission belt pulley transmission is connected down, axis of rotation lower extreme friction connect be equipped with elevator upside tooth intermeshing's rotating gear, be equipped with the screens chamber on the terminal surface under the rotating gear, be equipped with the ascending spacing chamber of opening on the inner wall under the transmission chamber right side, spacing chamber lower extreme is equipped with spacing electro-magnet, spacing intracavity is equipped with and stretches into the screens piece in the screens intracavity, the lower terminal surface of screens piece with be connected with spacing spring between the up end of spacing electro-magnet.

Furthermore, the clamping mechanism comprises a clamping cavity located on the lower inner wall of the front side of the casing, a pulling cavity with a forward opening is formed in the rear inner wall of the clamping cavity, a pulling block is arranged in the pulling cavity, a movable clamping block is arranged at the lower end of the pulling block, a pulling spring is arranged between the rear end face of the labor block and the rear inner wall of the labor cavity, the front end of the pulling block is connected with the other end of the pulling rope, and a fixed clamping block is arranged on the lower end face of the front side of the casing.

The invention has the beneficial effects that: the invention has simple structure and convenient operation, when in use, the invention can automatically open the needle plate of the sewing machine, then clean the cotton wool inside, and then carry out oiling maintenance on the position of the bobbin of the internal shuttle wheel.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic right-view structural diagram of the full section A-A of FIG. 1 according to the embodiment of the present invention;

FIG. 3 is a schematic structural diagram at B-B of FIG. 1 according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram at C-C of FIG. 1 according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram at D-D of FIG. 1 according to an embodiment of the present invention.

Detailed Description

The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

With reference to fig. 1-5, the maintenance oiling device for the electric sewing machine comprises a casing 10, a transmission cavity 45 is arranged in the middle of the casing 10, a transmission mechanism 99 is arranged in the transmission cavity 45, a rotating mechanism 100 is arranged in the transmission cavity 45, an absorption cavity 36 is arranged on the right side of the transmission cavity 45, a plate opening mechanism 101 is arranged in the absorption cavity 36, a rotation cavity 105 is arranged on the lower side of the transmission cavity 45, a lifting mechanism 102 is arranged in the rotation cavity 105, a cleaning cavity 106 is arranged on the left side of the transmission cavity 45, a cleaning oiling mechanism 103 is arranged in the cleaning cavity 106, a clamping cavity 92 is arranged on the front side of the transmission cavity 45, a clamping mechanism 104 is arranged in the clamping cavity 92, the plate opening mechanism 101 comprises a ventilation cavity 39 which is arranged on the upper inner wall on the left side of the absorption cavity 36 and penetrates through the casing 10, an exhaust cavity 37 which penetrates through the casing 10 is arranged on the upper inner, a fan 38 is arranged in the exhaust cavity 37, a longitudinal moving cavity 40 with a rightward opening is arranged on the left inner wall of the adsorption cavity 36, a longitudinal moving block 31 is arranged in the longitudinal moving cavity 40 in a sliding manner, an external power supply block 42 connected with a power supply is arranged on the upper end face of the longitudinal moving block 31, a pull-down spring 30 is connected between the lower end face of the longitudinal moving block 31 and the lower inner wall of the longitudinal moving cavity 40, a fan power supply block 41 connected with the fan 38 is arranged on the upper inner wall of the longitudinal moving cavity 40, a connecting rod 32 is arranged at the right end of the longitudinal moving block 31, a transition block 33 is arranged at the right end of the connecting rod 32, a top block 34 is arranged on the upper end face of the transition block 33, a sealing block 35 is arranged at the upper end of the top block 34, a test rod 29 is arranged at the lower end of the transition block 33, a sealing ring 63 is arranged around the lower side of the adsorption cavity 36, an unlocking cavity 58 is arranged on the right side, driven shaft 69 upper end is equipped with driven gear 68, it is located to rotate on the upper inner wall on the left side of chamber 58 to begin to rotate on the left side of driven shaft 69 twist the axle 70, twist the axle 70 on be equipped with driven gear 68 intermeshing twist the gear 59, be connected with on the terminal surface twist axle 70 down and twist driving disk 60, twist driving disk 60 lower extreme and be equipped with connecting sleeve 61, connecting sleeve 61 lower extreme sliding connection is equipped with slide bar 64, the slide bar 64 lower extreme is equipped with connection pad 65, the up end of connection pad 65 with be connected with between the lower terminal surface of twisting driving disk 60 and twist spring 62, be equipped with on the lower terminal surface of connection pad 65 and stretch out unlock chamber 58's screwdriver 66, driven shaft 69 lower extreme is equipped with driven pulley 67, unlock chamber 58's right side be equipped with unlock chamber 58 left side the same structure.

Beneficially, the cleaning oiling mechanism 103 includes a cleaning shaft 48 located on the upper inner wall of the right side of the cleaning cavity 106, the upper end of the cleaning shaft 48 is provided with a cleaning belt pulley 47, the lower end of the cleaning shaft 48 is provided with a cleaning disc 49, the lower end of the cleaning disc 49 is provided with a cleaning connecting rod 46, a cleaning block 94 extending out of the housing 10 is slidably arranged in the cleaning cavity 106, the lower end of the cleaning block 94 is provided with a brush 21, the left end face of the rear side of the cleaning block 94 is provided with an extending cavity 96 with a left opening, the extending cavity 96 is internally provided with an extending block 97, the right side of the extending block 97 is provided with a limiting block 95, the left end face of the front end of the cleaning block 94 is provided with a structure the same as the rear side, an extending shaft 98 is arranged between the two extending blocks 97, the upper end of the cleaning block 94 is provided with a moving plate 51, the, the cleaning device is characterized in that an upper oil cavity 11 is arranged on the left side of the cleaning cavity 106, a connecting cavity 52 is connected between the right inner wall of the upper oil cavity 11 and the left inner wall of the cleaning cavity 106, a connecting shaft 53 is arranged between the front inner wall and the rear inner wall of the connecting cavity 52 in a rotating manner, a rotating rod 54 is arranged on the connecting shaft 53, the right end of the rotating rod 54 is connected with the extending shaft 98 in a rotating manner, a sliding cavity 12 is arranged on the left inner wall of the upper oil cavity 11, a sliding magnet 13 is arranged in the sliding cavity 12, a sliding electromagnet 17 is arranged at the lower end of the sliding cavity 13, a sliding rod 14 is arranged at the right end of the sliding magnet 13, an oil feeding block 15 is arranged at the right end of the sliding rod 14, an oil storage cavity 16 is arranged in the oil feeding block 15, a transverse moving cavity 57 with an opening facing to the right is arranged on the right, go up the oil block 15 lower extreme and be equipped with oil pipe 18, oil pipe 18 middle part is equipped with outside expanded inflation piece 19, be equipped with ring pipe 20 on the lower inner wall of last oil pocket 11, just oil pipe 18 follows stretch out between the ring pipe 20 casing 10.

Advantageously, said transmission mechanism 99 comprises a transmission motor 79 located on an upper inner wall of said transmission chamber 45, the lower end of the transmission motor 79 is rotatably provided with a transmission shaft 81, the upper end of the transmission shaft 81 is provided with an upper transmission belt pulley 80, the upper transmission belt pulley 80 is in transmission connection with the cleaning belt pulley 47, a middle transmission belt pulley 82 positioned at the lower side of the upper transmission belt pulley 80 is arranged at the upper end of the transmission shaft 81, the middle transmission belt pulley 82 is in transmission connection with the driven belt pulley 67, the middle part of the transmission shaft 81 is provided with a lower transmission belt pulley 83, the lower end of the transmission shaft is frictionally connected with a rope winding wheel 84, one end of a pull rope 91 is connected on the rope winding wheel 84, an annular cavity 86 with a downward opening and an angle of two hundred and seventy degrees is arranged on the lower end surface of the rope winding wheel 84, and a limiting rod 86 extending into the annular cavity 86 is arranged on the lower inner wall of the transmission cavity 45.

Beneficially, elevating system 102 includes rotate and is established on the last inner wall of rotation chamber 105 and the lifting block 72 that the upside has the tooth, be equipped with lift chamber 71 on the lower inner wall of lifting block 72, be equipped with lifting rack 74 on the left inner wall of lift chamber 72, it is equipped with sill bar 78 to slide in the lift chamber 71, be equipped with the left gear chamber 77 of opening on the left end face of sill bar 78, be equipped with elevator motor 73 on the inner wall behind gear chamber 77, elevator motor 73 front end is equipped with lift axle 75, be equipped with on the lift axle 75 with lifting rack 74 intermeshing's lifting gear 76, sill bar 78 lower extreme is equipped with base 22.

Beneficially, slewing mechanism 100 includes the axis of rotation 44 that is located on the inner wall under transmission chamber 45 right side, the axis of rotation 44 upper end is equipped with rotates belt pulley 43, rotate belt pulley 43 with transmission belt pulley 83 transmission connection down, axis of rotation 44 lower extreme frictional connection be equipped with lifting block 72 side tooth intermeshing's rotating gear 23, be equipped with screens chamber 28 on the lower terminal surface of rotating gear 23, be equipped with the ascending spacing chamber 26 of opening on the inner wall under transmission chamber 45 right side, spacing chamber 26 lower extreme is equipped with spacing electro-magnet 25, be equipped with in the spacing chamber 26 and stretch into screens piece 27 in the screens chamber 28, the lower terminal surface of screens piece 27 with be connected with spacing spring 24 between the up end of spacing electro-magnet 25.

Advantageously, the clamping mechanism 104 includes a clamping cavity 92 located on the lower inner wall of the front side of the casing 10, a pulling cavity 93 with a forward opening is provided on the rear inner wall of the clamping cavity 92, a pulling block 88 is provided in the pulling cavity 93, a moving clamping block 90 is provided at the lower end of the pulling block 88, a pulling spring 87 is provided between the rear end face of the actuating block 88 and the rear inner wall of the working cavity 93, the front end of the pulling block 88 is connected to the other end of the pulling rope 91, and a fixed clamping block 89 is provided on the lower end face of the front side of the casing 10.

Sequence of mechanical actions of the whole device:

1: when the machine is started, the lifting motor 73 rotates forwards to drive the lifting shaft 75 and the lifting gear 76 to rotate forwards, so that the lifting rack 74 rotates forwards to drive the lifting block 72 to ascend to drive the machine shell 10 to ascend, then the sewing machine is put in a proper position, the lifting motor 73 rotates backwards, the machine shell 10 descends, then the test rod 29 is in contact with a needle plate on the sewing machine, then the test plate 29, the transition block 33, the top block 34 and the sealing block 35 are ascended compared with the machine shell 10 under the action of the needle plate of the sewing machine, so that the sealing block 35 seals the ventilating cavity 39, meanwhile, the transition block 33 drives the connecting rod 32 and the longitudinal moving block 31 to ascend, so that the external power supply block 42 is in contact with the fan power supply block 41, the fan 38 is started to suck out the gas in the adsorption cavity 36 to suck the needle plate, then the transmission motor 79 rotates forwards to drive the transmission shaft 81 and the middle transmission belt pulley 82 to, the screwing gear 59, the screwing shaft 70, the screwing disc 60, the connecting sleeve 61, the sliding rod 64, the connecting disc 65 and the screwdriver 66 are driven to rotate, the screw on the needle plate is screwed out, and then the lifting motor 73 is rotated, so that the machine shell 10 is lifted up to lift the needle plate out;

2: then, the transmission motor 79 is continuously rotated forwardly to drive the transmission shaft 81 to rotate, the lower transmission belt pulley 83 is driven to rotate, the rotating belt pulley 43 and the rotating shaft 44 are driven to rotate, the limiting electromagnet 25 is started to drive the clamping block 27 to move downwards, so that the rotating gear 23 is separated from limitation, the rotating shaft 44 rotates to drive the rotating gear 23 to rotate, and finally the lifting block 72 is driven to rotate relative to the machine shell 10, after the limiting electromagnet 25 stops moving after rotating ninety degrees, the clamping block 27 moves upwards under the action of the limiting spring 24 and enters the clamping cavity 28, so that the rotating gear 23 is limited in rotation;

3: then, the lifting motor 73 is rotated reversely to enable the machine shell 10 to descend, the edge of the wire clamp is located between the fixed clamping block 89 and the movable clamping block 90 to clamp the wire clamp, then, the lifting motor 73 is rotated forwardly to lift the wire clamp, then, the limiting electromagnet 25 is continuously started, and the machine shell 10 is continuously rotated to ninety degrees;

4: then the lifting motor 73 is reversed to make the machine shell descend, after descending to a proper position, the rotation is stopped to place the machine shell 10 at a proper position, then the transmission motor 79 is started to drive the transmission shaft 81 to rotate, the upper transmission belt pulley 80 is driven to rotate, the cleaning belt pulley 47, the transmission cleaning shaft 48, the cleaning disc 49 and the cleaning connecting rod 46 are driven to rotate, simultaneously the sliding electromagnet 17 is started to repel with the electrode of the sliding magnet 13, the sliding magnet 13 is arranged at the upper side of the sliding cavity 12, the cleaning connecting rod 46 rotates, the moving plate 51 moves forwards and backwards, the cleaning block 94 and the brush 21 are driven to move forwards and backwards to clean cotton wool in the shuttle wheel, then the electrode of the sliding electromagnet 17 is reversed, the sliding magnet 13 moves downwards, the oil feeding block 15 and the oil outlet pipe 18 are driven to move downwards, the cleaning block 94 and the brush 21 move upwards under the action of the rotating rod 54, the oil outlet pipe 18 moves downwards to make the expansion, under the action of pressure, the sewing machine oil on the inner side is extruded out to oil the bobbin, and then the magnetic pole of the sliding electromagnet 17 is changed back to the machine for resetting;

5: after oiling is finished, the lifting motor 73 is continuously rotated forwards to lift the machine shell 10, the transmission motor 73 and the limiting electromagnet 25 are continuously rotated to enable the machine to rotate by two hundred seventy degrees, then the lifting motor 73 is reversed to enable the machine shell 10 to descend, the wire clamping device is placed back, then the limiting electromagnet 25 is closed to reverse the transmission motor 79 to drive the rope winding wheel 84 to rotate, the pull rope 91 is tensioned to drive the pull block 88 to move rightwards to drive the movable clamping block 90 to move rightwards, the wire clamping device is released, then the lifting motor 73 is started to drive the machine shell 10 to ascend, then the limiting electromagnet 25 is started to rotate forwards, the transmission motor 79 is continuously rotated backwards to enable the machine to reverse ninety degrees to the original position, then the lifting motor is reversed to drive the machine shell 10 to descend to enable the adsorbed needle plate to be placed back to the original position, the screwdriver 66 is driven by the transmission motor, then the fan 38 is reversed to equalize the internal pressure and the external pressure, the adsorption to the needle plate is released, then the lifting motor 73 is started to lift the machine shell 10, the sewing machine is taken out, then the lifting motor 73 is reversed to restore the height, the longitudinal moving block 31 and the mechanism on the right side are moved downwards and restored under the action of the pull-down spring 30, finally the transmission motor 79 is rotated in a forward rotation mode to enable the rope winding wheel 84 to rotate, the pull rope 91 is loosened, and the pulling block 88 and the moving clamping block 90 move leftwards and restore under the action of the pulling spring 87;

the above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.