A feeding mechanism of a sewing device

Abstract

The present invention relates to a feeding mechanism of a sewing device and a method for transmitting and reverse sewing, which includes a mounting plate slidably arranged on a frame body. A lifting device is arranged on the mounting plate, and a transmission device is arranged on the lifting device. The transmission device slidably arranges a material guiding mechanism and an auxiliary feeding mechanism on the transmission device through a reverse sewing assembly; a limiting mechanism is arranged on the material guiding mechanism; the material guiding mechanism includes a material guiding groove for threading materials, and a pressing block capable of moving up and down relative to the material guiding groove is embedded at one end of the material guiding groove. The present invention provides a feeding mechanism of a sewing device, which can perform stable material transmission and reverse sewing operations, and can also effectively correct the transmission posture of the materials.

Description

Technical Field

[0001] The present invention relates to the field of industrial production and processing, and mainly relates to a mechanical mechanism of a sewing device, and in particular to a feeding mechanism of the sewing device. Background Art

[0002] Chinese patent CN203546358U discloses a fully automatic template sewing machine, in which the template clamping device includes a pressure strip, a pressure wheel group, a roller group, and guide rails on both sides of the frame. The pressure wheel group and the roller group are installed on the guide rails and connected to the driving device. The pressure strip is pressed between the pressure wheel group and the roller group. The template is bonded to the pressure strip. The pressure wheel group presses the pressure strip against the roller group, and the roller group drives the pressure strip and the template to move left and right in the X direction. This automatic template sewing machine requires the roller combination and the pressure wheel group to cooperate with each other to compress and drag the garment template. The positions of the roller group and the pressure wheel group must correspond to each other, which is relatively cumbersome to manufacture and needs to be improved.

[0003] The existing technology has made improvements to the above technical problems. For example, China Patent: Automatic Template Sewing Machine Tugwheel Lifting Device (Patent No.: CN201420437826.X) discloses a tugwheel lifting device for an automatic template sewing machine, including a support seat, a cylinder, a connecting piece and a motor. The support seat includes a base, an upper seat and a guide shaft. The guide shaft is connected between the base and the upper seat, and a slider is provided on the guide shaft; the cylinder is installed above the upper seat of the support seat, and a connecting rod is provided at the bottom of the cylinder, and the connecting rod can perform piston motion in the cylinder. The lower end of the connecting rod is located outside the cylinder and passes through the upper seat of the support seat, and is connected to the slider; the connecting piece is fixedly connected to the slider, and the motor is fixedly connected to the connecting piece, and the motor drives the tugwheel to rotate.

[0004] In the prior art, a motor drives a tug wheel to rotate, causing the tug wheel to press the garment template and simultaneously move the garment template forward. Although the tug wheel can move the garment template forward when pressing the garment, the conveying effect of the garment template is poor, and the conveying length is uncertain. Furthermore, the conveying process does not straighten the fabric, which can easily cause the material to deviate from its original trajectory during conveyance.

[0005] Therefore, it is necessary to develop a feeding mechanism for sewing equipment that can perform stable material conveying and backstitch operations, and can also effectively correct the conveying posture of the material. Summary of the invention

[0006] The present invention overcomes the deficiencies of the prior art and provides a feeding mechanism for sewing equipment, which can perform stable material conveying and backstitching operations and can also effectively correct the conveying posture of the material.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows: A feeding mechanism of a sewing device, including a mounting plate slidably arranged on the main body of the frame, a lifting device is arranged on the mounting plate, a conveying device is arranged on the lifting device, and the conveying device slidably arranges a material guiding mechanism and an auxiliary feeding mechanism on the conveying device through a reverse sewing component; a limiting mechanism is arranged on the material guiding mechanism; the material guiding mechanism includes a material guiding groove for threading materials, and a pressing block capable of moving up and down relative to the material guiding groove is embedded at one end of the material guiding groove.

[0008] In a preferred technical solution of the present invention, the auxiliary feeding mechanism includes a runner pivotally connected to the other end of the material guiding groove; the auxiliary feeding mechanism further includes a lever, and the middle section of the lever is pivotally connected to a bracket on the upper part of the material guiding groove; one end of the lever far from the material guiding groove is pivotally connected to the runner.

[0009] In a preferred technical solution of the present invention, a force applying rod is arranged at one end of the lever close to the material guiding groove, and a pressing plate capable of moving up and down relative to the force applying rod is arranged on the auxiliary feeding mechanism.

[0010] In a preferred technical solution of the present invention, a lifting mechanism is arranged on the auxiliary feeding mechanism, and the lifting mechanism is drivingly connected to the pressing plate.

[0011] In a preferred technical solution of the present invention, a buckle device for combined connection with other devices is further arranged on the mounting plate, the buckle device includes a buckle connecting plate for connecting with other devices, the buckle connecting plate slidably passes through a limiting block on the mounting plate, and a pushing mechanism for driving the limiting block to be snap-connected with the buckle connecting plate is arranged on the mounting plate.

[0012] Specifically, a buckle device is further arranged on the mounting plate, the buckle device includes a pushing mechanism installed on the mounting plate, the pushing mechanism drives the limiting block to make a forward and backward pushing and clamping action relative to the mounting plate, a tongue is arranged on the limiting block and penetrates into a slot on the mounting plate, a buckle connecting plate is arranged between the limiting block and the mounting plate, and a limiting groove corresponding to the limiting block for snap connection is arranged on the buckle connecting plate.

[0013] Furthermore, the conveying device includes a conveying line rail arranged on the lifting device, and a conveying sliding plate slidably arranged on the conveying line rail, and a reverse sewing component and a pushing air cylinder are arranged between the conveying sliding plate and the lifting device.

[0014] In a preferred technical solution of the present invention, the reverse sewing component includes a pair of support plates respectively installed at both ends of the lifting device, a shaft rod penetrates between the pair of support plates, and an elastic member limited between the two support plates is sleeved on the shaft rod.

[0015] In a preferred technical solution of the present invention, the conveying mechanism and the conveying method are as follows: The feeding mechanism is assembled and connected to the sewing equipment through a snap-fastening device. The material is placed into the through cavity of the material guiding groove. The lifting device drives the conveying device to move up and down on the lifting linear guide. The feeding mechanism and the sewing equipment are located at the designated positions on the machine frame. The limiting mechanism on the feeding mechanism abuts against and limits the machine frame. When the sewing equipment advances forward for sewing, the reverse sewing is performed when the sewing equipment is pulled back and reset by using the reverse sewing component.

[0016] During sewing, the lifting mechanism raises the pressing plate. The pressing plate releases the force-applying rod. The runner is pressed downward by gravity against the material conveyed out by the material guiding groove. At this time, the clamping cylinder on the material guiding groove also raises upward to release the material. The material guiding groove is used to guide and convey the material. When the feeding mechanism advances backward, the sewing equipment locked and connected to the feeding mechanism sews the material.

[0017] The present invention solves the defects existing in the background technology. The beneficial effects of the present invention are as follows:

[0018] A feeding mechanism of a sewing equipment can perform stable material conveying and reverse sewing operations, and can also effectively correct the conveying posture of the material.

[0019] The material is conveyed through the material guiding groove, effectively straightening the material and preventing the material from deviating during the conveying process.

[0020] The feeding mechanism can assist in driving the sewing machine locked and combined with it to perform reverse sewing operations. The limiting mechanism on the back of the support plate abuts against and limits the machine frame body. At this time, the sewing machine locked to the mounting plate through the snap-fastening device still advances forward. At the same time, it sews forward. At this time, the material guiding mechanism and the auxiliary feeding mechanism of the support plate are in place and press against the material. By squeezing the elastic member in the reverse sewing component, when the elastic member is deformed by force and then reset, the mounting plate and the sewing machine locked and combined with the mounting plate through the buckle device are pulled back together to achieve the reverse sewing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the drawings and embodiments.

[0022] Figure 1 is the structural schematic diagram of the preferred embodiment in the present invention Figure 1 ;

[0023] Figure 2 is the structural schematic diagram of the partial enlargement in the preferred embodiment of the present invention;

[0024] Figure 3 is the structural schematic diagram of the back in the preferred embodiment of the present invention;

[0025] In the figure: 1 - mounting plate, 2 - lifting device, 21 - lifting linear guide, 22 - lifting plate, 3 - conveying device, 31 - conveying linear guide, 32 - conveying slide plate, 33 - reverse needle assembly, 331 - support plate, 332 - shaft rod, 333 - elastic member, 4 - material guiding mechanism, 41 - material guiding groove, 42 - clamping mechanism, 421 - clamping cylinder, 422 - pressing block, 5 - auxiliary feeding mechanism, 51 - abutting plate, 511 - pressing plate, 512 - force applying rod, 513 - limiting plate, 514 - runner, 515 - lever, 516 - pivot point, 517 - lifting mechanism, 6 - buckle device, 61 - pushing mechanism, 62 - slot, 63 - tongue, 631 - limiting block, 64 - buckle connecting plate, 641 - limiting groove, 7 - limiting mechanism. Detailed implementation manners

[0026] Now, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only showing the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention.

[0027] As Figures 1 to 3 shown, a feeding mechanism of a sewing device of the present invention includes a mounting plate 1 slidably arranged on a frame. A lifting device 2 is installed on the mounting plate 1. A pair of parallel lifting linear guides 21 of the lifting device 2 are longitudinally arranged on the mounting plate 1. A lifting plate 22 of the lifting device 2 is slidably arranged on the lifting linear guides 21. One end of the lifting linear guides 21 is provided with a lifting element drivingly connected to the lifting plate 22, and the lifting element pushes the lifting plate 22 to perform reciprocating up and down movements on the lifting linear guides 21. A pushing mechanism 61 is arranged on the mounting plate 1. The pushing mechanism 61 penetrates through the mounting plate 1 and is drivingly connected to a limiting block 631. Slots 62 are respectively arranged on both sides of the pushing mechanism 61 on the mounting plate 1. Tongues 63 penetrating out of the slots 62 are arranged at both ends of the limiting block 631. A buckle connecting plate 64 is movably arranged between the mounting plate 1 and the limiting block 631. A limiting groove 641 is arranged at one end of the plate 64 inserted between the mounting plate 1 and the limiting plate 631. The limiting block 631 is limited and engaged with the limiting groove 641 by pushing the limiting block 631 by the pushing mechanism 61. The other end of the buckle connecting plate 64 is fixedly connected to an adjacent sewing device. Thus, the feeding mechanism is combined and connected with the sewing machine through the buckle device 6.

[0028] Specifically, a pair of parallel conveying line rails 31 arranged horizontally are provided on the lifting plate 22 of the lifting device 2, and a conveying slide plate 32 of the conveying device 3 is slidably arranged on the conveying line rails 31. A reverse needle assembly 33 is arranged between the conveying slide plate 32 and the lifting device 2. The reverse needle assembly 33 includes a support plate 331 arranged on the conveying slide plate 32, and a support plate 331 is also arranged at one end of the conveying line rail 31. The two support plates 331 are connected in series by a shaft rod 332, and an elastic member 333 is sleeved on the shaft rod 332, and both ends of the elastic member 333 abut against the support plates 331 on both sides. And both ends of the shaft rod 332 penetrate through the support plates 331 on both sides, and at least one side of the support plate 331 is slidably sleeved with one end of the shaft rod 332. The reverse needle assembly 33 further includes a limiting mechanism 7 arranged on the back of the support plate 331 and abutted against and limited by the machine frame.

[0029] Further, a material guiding groove 41 is fixedly arranged at the bottom of the conveying slide plate 32 of the conveying device 3. The material guiding groove 41 is consistent with the conveying track of the conveying device 3, that is, the arrangement direction of the material guiding groove 41 is the same as or parallel to the conveying line rail 31. A horizontal cavity for guiding materials is arranged in the material guiding groove 41. A pressing block 422 embedded in the cavity is arranged at the upper part of one end of the material guiding groove 41. The pressing block 422 is drivingly connected to a clamping air cylinder 421 fixedly installed on the conveying slide plate 32. The driving rod of the clamping air cylinder 421 is connected to the top of the pressing block 422, and the pressing block 422 is driven by the clamping air cylinder 421 to make a reciprocating lifting motion relative to the material guiding groove 41.

[0030] Furthermore, a bracket installed on the material guiding groove 41 and a pressing air cylinder 517 located on one side of the bracket are arranged at the upper part of the other end of the material guiding groove 41. A pair of levers 515 pivotally connected to the bracket are arranged on the other side of the bracket. A force applying rod 512 connecting the pair of parallel levers 515 is arranged on the side of the lever 515 close to the material guiding plate 41. The force applying rod 512 is opposite to the pressing air cylinder 517, and a pressing plate 511 is connected to the telescopic rod of the pressing air cylinder 517. The pressing plate 511 makes a reciprocating up and down motion relative to the force applying rod 512 under the drive of the pressing air cylinder 517; a runner 514 pivotally connected to the side of the lever 515 far from the material guiding plate 41 is arranged, and the runner 514 abuts against the materials conveyed out of the material guiding groove 41 correspondingly. While the pressing plate 511 is driven by the pressing air cylinder 517 to move up and down, the pressing plate 511 presses down and releases the force applying rod 512, driving the lever 515 to swing up and down around the pivot point 516 on the bracket, so as to drive the runner 514 to abut against and leave the materials conveyed out of the material guiding groove 41.

[0031] The working principle is:

[0032] The conveying device 3 is driven by the lifting device 2 to move up and down on the lifting linear guide 21. The limiting mechanism 7 on the back of the support plate 331 abuts against and limits the frame body. At this time, the sewing machine locked with the mounting plate 1 by the snap device 6 still advances forward and sews forward at the same time. The material guiding mechanism 4 and the auxiliary feeding mechanism 5 of the support plate 331 are in place, and the material guiding mechanism 4 and the auxiliary feeding mechanism 5 press against the material. By squeezing the elastic member 333 in the reverse sewing assembly 33, when the elastic member 333 is deformed by force and then reset, it pulls the mounting plate 1 back, the sewing machine retreats, the elastic member 333 resets, and the material guiding mechanism 4 and the auxiliary feeding mechanism 5 of the support plate 331 reset, and then the sewing machine performs reverse sewing operation.

[0033] When pulling the mounting plate 1 back, the feeding mechanism and the sewing machine locked by the snap device 6 are combined. The feeding mechanism conveys and presses against the material while the sewing machine sews. At the same time, the material guiding groove 41 of the feeding mechanism is sleeved outside the material and moves backward to adjust the posture of the material and presses against the material to facilitate the sewing of the sewing machine. The snap device combines and locks the feeding mechanism and the sewing machine, and the sewing will only be paused when the thread breaks or the bobbin thread is used up during the sewing process. By disengaging the snap device 6, maintenance or loading can be carried out.

[0034] Based on the ideal embodiments of the present invention as the inspiration, through the above description, relevant personnel can make various changes and modifications completely within the scope without departing from the technical idea of the present invention. The technical scope of this invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A feeding mechanism for a sewing device, comprising a mounting plate (1) slidably arranged on a frame body, a lifting device (2) is arranged on the mounting plate (1), and a conveying device (3) is arranged on the lifting device (2), characterized in that: The conveying device (3) slidably mounts the material guiding mechanism (4) and the auxiliary feeding mechanism (5) thereon through the reverse needle assembly (33); a limiting mechanism (7) is provided on the material guiding mechanism (4); the material guiding mechanism (4) includes a material guiding groove (41) for threading the material, and a pressing block (422) capable of moving up and down relative to the material guiding groove (41) is embedded at one end of the material guiding groove (41); The auxiliary feeding mechanism (5) includes a runner (514) pivotally connected to the other end of the material guiding groove (41); the auxiliary feeding mechanism (5) includes a lever (515), and the middle section of the lever (515) is pivotally connected to the bracket on the upper part of the material guiding groove (41); the end of the lever (515) far from the material guiding groove (41) is pivotally connected to the runner (514); A snap device (6) for combined connection with other devices is further provided on the mounting plate (1), the snap device (6) includes a snap connection plate (64) connected to other devices, the snap connection plate (64) slidably passes through a limiting block (631) on the mounting plate (1), and a pushing mechanism (61) for driving the limiting block (631) to be snap-connected with the snap connection plate (64) is provided on the mounting plate (1); The reverse needle assembly (33) includes a pair of support plates (331) respectively mounted at both ends of the lifting device (2), a shaft rod (332) is threaded between the pair of support plates (331), and an elastic member (333) limited between the two support plates (331) is sleeved on the shaft rod (332); The conveying reverse needle method of the feeding mechanism of the sewing equipment: The feeding mechanism is assembled and connected to the sewing equipment through the snap device (6), the material is put into the cavity of the material guiding groove (41), the lifting device (2) drives the conveying device (3) to perform up and down lifting actions on the lifting linear guide (21), the feeding mechanism and the sewing equipment are located at the designated position on the machine frame, the limiting mechanism (7) on the feeding mechanism abuts against and limits the machine frame, the sewing equipment is advanced forward for sewing, and then the reverse needle assembly (33) is used to perform reverse needle sewing when the sewing equipment is pulled back and reset; During sewing, the lifting mechanism (517) lifts the pressing plate (511), the pressing plate (511) releases the force application rod (512), the runner (514) presses down on the material conveyed out of the material guiding groove (41) by gravity, and at this time, the clamping cylinder (421) on the material guiding groove (41) also lifts up to release the material. The material guiding groove (41) is used to guide and convey the material. When the feeding mechanism advances backward, the sewing equipment locked and connected to the feeding mechanism sews the material.

2. The feeding mechanism of the sewing device according to claim 1, characterized in that: A force application rod (512) is provided at one end of the lever (515) close to the material guiding groove (41), and a pressing plate (511) capable of moving up and down relative to the force application rod (512) is provided on the auxiliary feeding mechanism (5).

3. The feeding mechanism of the sewing device according to claim 1, characterized in that: A lifting mechanism (517) is provided on the auxiliary feeding mechanism (5), and the lifting mechanism (517) is drivingly connected to the pressing plate (511).

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