CN215561062U

CN215561062U - Double-drive tug device

Info

Publication number: CN215561062U
Application number: CN202120143391.8U
Authority: CN
Inventors: 李华映; 余飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2022-01-18
Anticipated expiration: 2031-01-19

Abstract

The utility model discloses a double-drive tug device, which relates to the technical field of sewing machines and comprises an upper tug, a lower tug, a main motor, an auxiliary motor, a first synchronous gear, a second synchronous gear, a third synchronous gear, a synchronous belt, a swing arm, a fixed cam, a spring pressure column and a housing assembly. The utility model has the beneficial effects that: the function of conveniently replacing the sewn clothes by the tugboat for feeding the cloth and without stopping the machine is realized.

Description

Double-drive tug device

Technical Field

The utility model relates to the technical field of sewing machines, in particular to a double-drive tugboat device.

Background

A sewing machine: machines in which one or more layers of material are interlaced or stitched together, essentially by a single sewing thread, forming a stitch on the material. The flat sewing machine can be used for sewing fabrics such as cotton, hemp, silk, wool, rayon and the like and products such as leather, plastics, paper and the like, the thin material is generally used for knitting, underwear, shirts, uniforms and the like, the thick material is generally used for various sportswear, jeans, fashion, overcoat, shoes, hats, fur, bags and the like, the flat sewing machine is the most basic vehicle type in sewing equipment, the simplest stitch is in sewing, and the sewn stitch is neat and attractive, uniform, flat and firm and has high sewing speed.

The traditional sewing machine feeding mode is cloth feeding tooth feeding, the part is that a machine needle and a presser foot participate in feeding together with the cloth feeding tooth, the cloth feeding force of the traditional sewing machine feeding mode is limited, the cloth needs to be pushed forwards manually, after sewing of one piece of clothes is completed, the machine needs to be stopped, the sewn clothes can be taken out, then sewing of the next piece of clothes is carried out, no method is used for machine adjustment, and therefore more manpower, material resources and time are wasted.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a double-drive tug device which drives a second synchronous gear and a third synchronous gear to synchronously rotate through a first synchronous gear, drives a swing arm to periodically swing up and down through the rotation of a fixed cam, so as to drive an upper tug to periodically swing up and down, realize the cloth feeding of the tug and conveniently replace the sewn clothes without stopping.

In order to achieve the purpose of the utility model, the utility model provides the following technical scheme:

a double-drive tug device comprises an upper tug, a lower tug, a main motor, an auxiliary motor, a first synchronous gear, a second synchronous gear, a third synchronous gear, a synchronous belt, a swing arm fixing table, an auxiliary motor fixing table, a fixed cam, a spring pressure column and a shell assembly, wherein the first synchronous gear is fixed on the main motor, the main motor drives the first synchronous gear to rotate along one direction, the synchronous belt is sleeved on the first synchronous gear, the second synchronous gear is sleeved in the synchronous belt, the third synchronous gear is arranged on the outer side of the synchronous belt and is tightly attached to the outer side of the synchronous belt, the lower tug is connected with the second synchronous gear through a transmission shaft, a connecting rod of the upper tug penetrates through the swing arm and is connected with the third synchronous gear through a universal coupling, the swing arm is arranged on the swing arm fixing table through two swing arms, the bottom of the spring pressure column is fixed on the swing arm, the top of the spring pressure column is arranged on the shell assembly, the fixed cam is fixed on the auxiliary motor fixing table, the auxiliary motor is installed on the auxiliary motor fixing table, the output end of the auxiliary motor is connected with the fixed cam, a bearing is arranged on the swing arm, and the bearing is located above the fixed cam and is tightly attached to the fixed cam.

Preferably, the connecting rod of the upper tug and the third synchronizing gear are connected by a cross universal coupling, the cross universal coupling can enable two shafts which are not on the same axis or have larger folding angles on the axis or have larger axial movement to rotate at the same angular speed, the torque and the movement can be reliably transmitted, and the fact that the up-and-down swinging movement of the upper tug does not influence the third synchronizing gear to drive the upper tug to rotate along the center of the upper tug can be guaranteed.

Preferably, first synchronizing gear, second synchronizing gear, third synchronizing gear all pass through nut fixed mounting, and such setting can make gear assembly convenient to detach and change, satisfies more customers' needs.

Preferably, the spring pressure post includes the spring, post body and pressure regulating nut, the bottom of post body is passed through the nut and is fixed in the swing arm, post body top and pressure regulating nut cooperation are installed on shell subassembly, the inside hollow structure that is of pressure regulating nut, it is inside that pressure regulating nut is extended to post body top, pressure regulating nut restriction spring upwards extends, the post body can follow raising of swing arm and to the inboard extension of pressure regulating nut, the spring is restricted can not extend, follow the extension of post body and compress, produce an elasticity, when the swing arm reduces, the post body retracts from pressure regulating nut, the reconversion, the elasticity release of spring, the extrusion swing arm, make its quick recovery, through the initial deformation degree of rotatory pressure regulating nut with control spring, thereby change the elastic deformation degree of spring.

Preferably, the auxiliary motor is a direct current motor, a current adjusting knob is arranged on the direct current motor, and the current of the direct current motor can be changed, so that the rotating speed of the fixed cam is influenced.

Specifically, the present invention has the following advantages:

the utility model is provided with an upper tug and a lower tug, which are fixed on a main motor through a first synchronous gear, a synchronous belt is sleeved on the first synchronous gear, a second synchronous gear is sleeved in the synchronous belt, a third synchronous gear is arranged on the outer side of the synchronous belt and clings to the outer side of the synchronous belt, the lower tug is arranged on the second synchronous gear through a transmission shaft, a connecting rod of the upper tug passes through a swing arm and is connected with a third synchronous gear through a universal coupling, the swing arm is arranged on a swing arm fixing table through two articulated shafts, the main motor can drive the first synchronous gear to rotate along the central axis in one direction, the first synchronous gear rotates to drive the synchronous belt to move, the synchronous belt drives the second synchronous gear sleeved in the synchronous belt to rotate along the same direction as the first synchronous gear, thereby driving the lower tug to rotate along the rotating direction of the first synchronous gear along the central axis, the synchronous belt also drives the third synchronous gear clinging to the outer side of the synchronous belt to rotate along the opposite direction, thereby driving the upper tug to rotate along the central axis in the direction opposite to the rotating direction of the first synchronizing gear, thus ensuring that the rotating directions of the upper tug and the lower tug are opposite, and further leading the cloth in the upper tug to automatically move forwards, thereby achieving the effect of automatic mopping.

The utility model is provided with a fixed cam, the fixed cam is connected with the output end of an auxiliary motor, a swing arm is tightly attached to the fixed cam through a bearing, a spring pressure column is fixed on the swing arm, the swing arm is arranged on a swing arm fixing table through two hinged shafts, so that the swing arm can only swing up and down along the hinged shafts, because the fixed cam has a high position and a low position, when the fixed cam rotates from the low position to the high position, the convex end of the fixed cam lifts the bearing, so that the swing arm swings upwards to drive an upper tug to rise and keep away from the lower tug, a column body of the spring pressure column extends upwards, a spring on the spring pressure column is compressed to generate an elastic force, at the moment, a cloth which has finished a sewing procedure can be taken away, the next cloth is changed to continue sewing, when the fixed cam rotates from the high position to the low position, the bearing is reduced along with the rotation of the fixed cam, the column body retracts, the elastic force of the spring is released, and the spring presses the swing arm to reduce along with the reduction of the bearing, when reducing the extreme low position, go up the tow boat and can cooperate the work with tow boat down, drag the cloth and move forward, such setting up can guarantee that sewing machine starts the back, need not stop the machine, alright take away the cloth of sewing process to change into the next cloth that needs the sewing, the process can go on constantly, and the time is more accurate.

In conclusion, compared with the prior art, the double-drive tug device provided by the utility model realizes the functions of cloth feeding of the tug and convenient replacement of sewn clothes without stopping the machine.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic front view of the present invention;

FIG. 4 is a schematic cross-sectional view of the present invention taken along the stationary cam;

FIG. 5 is a schematic front view of the housing assembly of the present invention;

fig. 6 is a right-side view of the housing assembly of the present invention.

In order to better show the internal structure of the present invention, fig. 1 to 4 are schematic views with the housing assembly removed, and fig. 5 to 6 are schematic views with the housing assembly.

Detailed Description

In order that those skilled in the art will be able to better understand the technical solutions provided by the present invention, the following description is provided in connection with specific embodiments.

Referring to fig. 1-6, fig. 1 is a schematic overall structure of the present invention; FIG. 2 is a schematic side view of the present invention; FIG. 3 is a schematic front view of the present invention; FIG. 4 is a schematic cross-sectional view of the present invention taken along the stationary cam; FIG. 5 is a schematic front view of the housing assembly of the present invention; fig. 6 is a right-side view of the housing assembly of the present invention.

The embodiment of the utility model provides a double-drive tug device, wherein the names of parts corresponding to reference numerals in the drawing are as follows: the device comprises an upper tug 1, a lower tug 2, a main motor 3, an auxiliary motor 4, a first synchronous gear 5, a second synchronous gear 6, a third synchronous gear 7, a synchronous belt 8, a swing arm 9, a swing arm fixing table 10, a fixed cam 11, an auxiliary motor fixing table 12, a spring pressure column 13, a bearing 14, a universal coupling 15, a pressure regulating nut 16, a transmission shaft 17 and a shell assembly 18.

A double-drive tug device comprises an upper tug 1, a lower tug 2, a main motor 3, an auxiliary motor 4, a first synchronizing gear 5, a second synchronizing gear 6, a third synchronizing gear 7, a synchronous belt 8, a swing arm 9, a swing arm fixing table 10, an auxiliary motor fixing table 12, a fixed cam 11, a spring pressure column 13 and a housing assembly 18, wherein the first synchronizing gear 5 is fixed on the main motor 3, the main motor 3 drives the first synchronizing gear 5 to rotate along one direction, the synchronous belt 8 is sleeved on the first synchronizing gear 5, the second synchronizing gear 6 is sleeved in the synchronous belt 8, the third synchronizing gear 7 is arranged outside the synchronous belt 8 and is tightly attached to the outside of the synchronous belt 8, the lower tug 2 is connected with the second synchronizing gear 6 through a transmission shaft 17, a connecting rod of the upper tug 1 penetrates through the swing arm 9 and is connected with the third synchronizing gear 7 through a universal coupling 15, the swing arm 9 is arranged on the swing arm fixing table 10 through two hinge shafts, the bottom of spring pressure post 13 is fixed on swing arm 9, and the top of spring pressure post 13 is installed on shell subassembly 18, and fixed cam 11 is fixed on auxiliary motor fixed station 12, and auxiliary motor 4 is installed on auxiliary motor fixed station 12, and auxiliary motor 4's output and fixed cam 11 are connected, are provided with bearing 14 on the swing arm 9, and bearing 14 is located fixed cam 11 top and hugs closely with fixed cam 11.

The connecting rod of the upper tug 1 is connected with the third synchronizing gear 7 through a cross universal coupling, the cross universal coupling can enable two shafts which are not on the same axis or have larger folding angles or larger axial movement to rotate at the same angular speed, the torque and the movement can be reliably transmitted, and the fact that the third synchronizing gear 7 drives the upper tug 1 to rotate along the center of the third synchronizing gear 7 is not influenced by the up-and-down swinging movement of the upper tug 1 can be guaranteed.

First synchronizing gear 5, second synchronizing gear 6, third synchronizing gear 7 all pass through nut fixed mounting, and such setting can make gear assembly convenient to detach and change, satisfies more customers' needs.

Spring pressure post 13 includes the spring, post body and pressure regulating nut 16, the bottom of post body is passed through the nut and is fixed on swing arm 9, post body top and the cooperation of pressure regulating nut 16 are installed on shell subassembly 18, 16 inside hollow structure that is of pressure regulating nut, 16 inside pressure regulating nut is extended to post body top, 16 restriction springs of pressure regulating nut upwards extend, the post body can follow the raising of swing arm 9 and extend to 16 inboard sides of pressure regulating nut, the spring is restricted can not extend, follow the extension of post body and compress, produce an elasticity, when swing arm 9 reduces, the post body retracts from pressure regulating nut 16, the reconversion, the elasticity release of spring, extrude swing arm 9, make its quick recovery, through the initial deformation degree of rotatory pressure regulating nut 16 with control spring, thereby change the elastic deformation degree of spring.

The auxiliary motor 4 is a direct current motor, a current adjusting knob is arranged on the direct current motor, and the current of the direct current motor can be changed, so that the rotating speed of the fixed cam 11 is influenced.

The use and working method of the utility model is as follows:

the method comprises the steps that a main motor 3 and an auxiliary motor 4 are firstly turned on, proper current is selected through an adjusting current knob on the auxiliary motor 4, the main motor 3 drives a first synchronous gear 5 to rotate in one direction, the first synchronous gear 5 drives a synchronous belt 8 to move, the synchronous belt 8 drives a second synchronous gear 6 to rotate in the same direction as the first synchronous gear 5, the synchronous belt 8 also drives a third synchronous gear 7 to rotate in the opposite direction to the first synchronous gear 5, the second synchronous gear 6 drives a lower tug 2 to rotate in the same direction as the first synchronous gear 5 through a transmission shaft 17, the third synchronous gear 7 drives an upper tug 1 to rotate in the opposite direction to the first synchronous gear 5 through a universal joint coupling 15, the rotation directions of the upper tug 1 and the lower tug 2 are opposite, and therefore cloth in the upper tug 1 and the lower tug is pushed to move forwards to perform a sewing process.

The auxiliary motor 4 drives the fixed cam 11 to rotate, when the fixed cam 11 rotates to a low position, the swing arm 9 is at the lowest position, the upper towing wheel 1 and the lower towing wheel 2 are matched to drag cloth to move forwards, when the fixed cam 11 rotates to a high position from the low position, the swing arm 9 is lifted to drive the upper towing wheel 1 to lift, the lower towing wheel 2 is kept away, and the cloth which has finished a sewing process can be taken away to be replaced by the next cloth to continue sewing.

Specifically, the present invention has the following advantages:

the utility model is provided with an upper tug 1 and a lower tug 2, which are fixed on a main motor 3 through a first synchronous gear 5, a synchronous belt 8 is sleeved on the first synchronous gear 5, a second synchronous gear 6 is sleeved in the synchronous belt 8, a third synchronous gear 7 is arranged at the outer side of the synchronous belt 8 and is tightly attached to the outer side of the synchronous belt 8, the lower tug 2 is arranged on the second synchronous gear 6 through a transmission shaft 17, a connecting rod of the upper tug 1 passes through a swinging arm 9 and is connected with the third synchronous gear 7 through a universal coupling 15, the swinging arm 9 is arranged on a swinging arm fixing table 10 through two articulated shafts, the main motor 3 can drive the first synchronous gear 5 to rotate along the central axis in one direction, the first synchronous gear 5 rotates to drive the synchronous belt 8 to move, the synchronous belt 8 drives the second synchronous gear 6 sleeved therein to rotate along the same direction as the first synchronous gear 5, thereby driving the lower tug 2 to rotate along the rotating direction along the first synchronous gear 5, the synchronous belt 8 also drives the third synchronous gear 7 tightly attached to the outer side of the synchronous belt to rotate in the opposite direction, so that the upper tug 1 is driven to rotate along the central axis in the opposite direction of the rotation direction of the first synchronous gear 5, the rotation directions of the upper tug 1 and the lower tug 2 are ensured to be opposite, and cloth in the upper tug automatically moves forwards, so that the effect of automatically mopping is achieved.

The utility model is provided with a fixed cam 11, the fixed cam 11 is connected with the output end of an auxiliary motor 4, a swing arm 9 is clung to the fixed cam 11 through a bearing 14, a spring pressure column 13 is fixed on the swing arm 9, the swing arm 9 is arranged on a swing arm fixing table 10 through two hinge shafts, so that the swing arm 9 can only swing up and down along the hinge shafts, because the fixed cam 11 has a high position and a low position, when the fixed cam 11 rotates from the low position to the high position, the protruding end of the fixed cam 11 lifts up the bearing 14, so that the swing arm 9 swings upwards to drive an upper tug 1 to lift up and keep away from a lower tug 2, a column body of the spring pressure column 13 extends upwards, a spring on the spring pressure column 13 is compressed to generate an elastic force, at this time, the cloth which has finished the sewing process can be taken away and replaced by the next cloth to continue sewing, when the fixed cam 11 rotates from the high position to the low position, the bearing 14 follows the rotation of the fixed cam 11 to lower, the post body retracts, the elasticity of spring is released, spring extrusion swing arm 9 makes it follow bearing 14's reduction and reduce, when reducing the extreme low position, go up tow boat 1 and tow boat 2 can the cooperation work down, drag the cloth and move forward, such setting up can guarantee that sewing machine starts the back, need not stop the machine, alright take off the cloth of sewing process to change into next cloth that needs the sewing, the process can go on in succession, the time is more accurate.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and these modifications and adaptations should be considered within the scope of the utility model.

Claims

1. A double-drive tug device is characterized by comprising an upper tug, a lower tug, a main motor, an auxiliary motor, a first synchronous gear, a second synchronous gear, a third synchronous gear, a synchronous belt, a swing arm fixing table, an auxiliary motor fixing table, a fixed cam, a spring pressure column and a shell assembly, wherein the first synchronous gear is fixed on the main motor, the main motor drives the first synchronous gear to rotate along one direction, the synchronous belt is sleeved on the first synchronous gear, the second synchronous gear is sleeved in the synchronous belt, the third synchronous gear is installed on the outer side of the synchronous belt and is tightly attached to the outer side of the synchronous belt, the lower tug is connected with the second synchronous gear through a transmission shaft, a connecting rod of the upper tug penetrates through the swing arm and is connected with the third synchronous gear through a universal coupling, the swing arm is installed on the swing arm fixing table through two hinge shafts, the bottom of the spring pressure column is fixed on the swing arm, the top of the spring pressure column is installed on the shell component, the fixed cam is fixed on the auxiliary motor fixing table, the auxiliary motor is installed on the auxiliary motor fixing table, the output end of the auxiliary motor is connected with the fixed cam, a bearing is arranged on the swing arm, and the bearing is located above the fixed cam and is tightly attached to the fixed cam.

2. A dual drive tug unit of claim 1 wherein the link of the upper tug and the third synchronizing gear are coupled by a cross-universal coupling.

3. A dual drive tug unit of claim 1 wherein the first synchronizing gear, the second synchronizing gear, and the third synchronizing gear are all fixedly mounted via nuts.

4. The double-drive tug device of claim 1, wherein the spring pressure column comprises a spring, a column body and a pressure regulating nut, the bottom of the column body is fixed on the swing arm through the nut, the top of the column body and the pressure regulating nut are installed on the shell assembly in a matched mode, the pressure regulating nut is of a hollow structure, the top of the column body extends into the pressure regulating nut, and the pressure regulating nut limits the spring to extend upwards.

5. A dual drive tug unit of claim 1 wherein the auxiliary motor is a dc motor with a current adjustment knob.