CN-115748125-B - Shuttle-loop driving mechanism of computerized embroidery machine

CN115748125BCN 115748125 BCN115748125 BCN 115748125BCN-115748125-B

Abstract

The invention discloses a ring shuttle transmission mechanism of a computer embroidery machine, which belongs to the technical field of transmission mechanisms of computer embroidery machines and comprises a first shaft, a second shaft, a driving module, a tracking module and a limiting module, wherein the driving module, the tracking module and the limiting module are arranged between the first shaft and the second shaft, and the synchronous transmission mechanism can be arranged between the first shaft and the driving motor according to the actual condition of the embroidery machine. The invention can convert the rotary motion of the first shaft into continuous forward and reverse interval motion of the ring shuttle gear shaft after three transmission reversing by arranging the first shaft extending along the Y direction, the second shaft extending along the X direction and the driving module, and can track the operation of the ring shuttle gear shaft by the second shaft and enhance the output torque applied on the second shaft by arranging the tracking module and the limiting module on the second shaft, thereby achieving the purpose of stably driving the ring shuttle gear shaft to rotate forwards and reversely at high frequency, further achieving the purpose of improving the forward and reverse rotation frequency of the ring shuttle gear shaft by further improving the rotation speed of the first shaft, and improving the working efficiency of the embroidery machine.

Inventors

CHEN FAJUN
WU YANGBIN

Assignees

东莞市宝轮电脑刺绣机械有限公司

Dates

Publication Date: 20260508
Application Date: 20221130

Claims (9)

1. The ring shuttle transmission mechanism of the computerized embroidery machine is characterized by being arranged between a first shaft and a second shaft, wherein the first shaft extends along the Y direction and is in transmission connection with one or more first motors, the second shaft extends along the X direction and is in transmission connection with a ring shuttle gear shaft, and the ring shuttle transmission mechanism comprises: The lifting device comprises a lifting assembly, a shifting fork assembly and a synchronizing assembly, wherein the lifting assembly comprises an eccentric wheel and a mandril which is in sliding connection with the eccentric wheel, the eccentric wheel is in transmission connection with the first shaft and can rotate under the driving of the eccentric wheel so as to drive the mandril to move back along the Z direction; The tracking module comprises a tracking motor and a second transmission device in transmission connection with the tracking motor, wherein the second transmission device is in transmission connection with the second shaft and can drive the second shaft to rotate, the second transmission device comprises a driving wheel, a first synchronous belt, a driving wheel and a coupling, the driving wheel is in transmission connection with the tracking motor, the driving wheel is in transmission connection with the driving wheel through the first synchronous belt, the coupling is sleeved between the driving wheel and the second shaft, the coupling is in transmission connection with the driving wheel and is detachably and fixedly arranged on the second shaft, the coupling is of an annular structure, an inner hole of the coupling is matched with the second shaft, a plurality of clamping protrusions extending along the axial direction are uniformly arranged on the outer wall of the coupling along the circumferential direction, and a plurality of first sliding grooves which are matched with the clamping protrusions one by one are arranged on the driving wheel.
2. The limiting module comprises two limiting pieces which are respectively arranged on one side of the second transmission device in the X direction, and the two limiting pieces are arranged on the embroidery machine and can limit the X-direction displacement of the second transmission device.
3. The loop shuttle transmission mechanism of the computerized embroidery machine according to claim 1, wherein one end of the eccentric wheel is in transmission connection with the first motor, the other end of the eccentric wheel is a columnar end, the ejector rod is sleeved on the columnar end, one end of the ejector rod is a slip ring, and the other end of the ejector rod is provided with a third shaft extending along the Y direction.
4. The mechanism of claim 2, wherein the link is of a V-shaped structure and comprises a first arm and a second arm extending to the outside of the positioning shaft, the ends of the first arm and the second arm are U-shaped ports, the opening of the first arm port extends toward the Y-direction, the opening of the second arm port extends toward the Z-direction, the third shaft is hinged between the opposite inner walls of the end of the first arm, a driving plate is hinged to the opposite inner walls of the end of the second arm, and the two ends of each driving plate extend to the outside of the X-direction of the U-shaped port.
5. A shuttle transmission mechanism for a computerized embroidery machine according to claim 3, wherein the outer wall of the synchronizing ring has an i-shaped structure, a groove is provided in the middle of the outer wall, and each of the driving plates is provided in the groove.
6. The mechanism of claim 1, wherein one end of each of the two limiting members is disposed on the periphery of the coupling, and the other end of each of the limiting members is detachably fixed to the embroidery machine.
7. The mechanism of any one of claims 1-5, wherein the second shaft and the shuttle gear shaft are gear shafts, and each gear shaft is provided with a bevel gear, and the bevel gears are engaged with each other.
8. The loop shuttle drive mechanism of a computerized embroidery machine of claim 6, wherein the first motor is an independent motor.
9. The loop shuttle transmission mechanism of computerized embroidery machine according to claim 6, wherein the first motor is an upper spindle motor, which is in transmission connection with an upper spindle extending in the X direction and can drive the upper spindle motor to rotate, the upper spindle is a gear shaft and is in transmission connection with a main needle, a synchronous transmission mechanism is further arranged between the upper spindle and the first shaft, the synchronous transmission mechanism comprises a fourth gear shaft which is in transmission connection with the upper spindle through a second synchronous belt and extends in the X direction, and the fourth gear shaft is in transmission connection with the first shaft through a reversing transmission member.

Description

Shuttle-loop driving mechanism of computerized embroidery machine Technical Field The invention relates to the technical field of transmission mechanisms of computerized embroidery machines, in particular to a ring shuttle transmission mechanism of a computerized embroidery machine. Background When the computerized embroidery machine works, the main needle moves back and forth above the embroidery in the longitudinal direction, the crochet needle moves back and forth below the embroidery in the transverse direction, the crochet needle and the crochet needle are tightly matched to finish the traction action of the embroidery thread, and in order to improve the quality of the embroidery, the actions of the crochet needle and the main needle are required to be kept consistent in high degree. In the actual use process, because the stepping distance between the main needle and the crochet needle is smaller, when the reversing frequency reaches a certain value, the crochet needle which moves horizontally easily generates the phenomenon of power transmission distortion, and the power mechanism is difficult to continuously and accurately transmit horizontal fine actions at high speed, so that the crochet needle and the main needle are matched to generate deviation when in high-speed operation, and the embroidery quality is influenced. Therefore, the upper limit frequency of the smooth reciprocating movement of the crochet hook directly determines the working efficiency of the embroidery machine. In production, the rotation speed of the gear shaft driving the crochet hook to reciprocate is generally limited to 1000 revolutions per minute or less, otherwise, the defective rate of embroidery is greatly increased, which also limits the maximum working efficiency of the embroidery machine and is difficult to lift. Disclosure of Invention Aiming at the problems in the prior art, the invention provides the ring shuttle transmission mechanism of the computerized embroidery machine, which can convert the rotary motion into continuous forward and reverse interval motion of the ring shuttle gear shaft after three transmission reversals, ensure that the ring shuttle gear shaft continuously keeps running stably in higher-frequency reversing actions, and improve the working efficiency of equipment. In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a ring shuttle drive mechanism of computerized embroidery machine, establishes between first axle and second axle, first axle extends along Y direction and is connected with one or more first motor drive, the second axle extends along X direction and is connected with ring shuttle gear shaft drive, ring shuttle drive mechanism includes: The driving module comprises a jacking component, a shifting fork component and a synchronizing component, wherein the jacking component comprises an eccentric wheel and a mandril which is connected with the eccentric wheel in a sliding way, the eccentric wheel is in transmission connection with the first shaft and can rotate under the driving of the eccentric wheel so as to drive the mandril to move back along the Z direction; the tracking module comprises a tracking motor and a second transmission device in transmission connection with the tracking motor, and the second transmission device is in transmission connection with the second shaft and can drive the second shaft to rotate; the limiting module comprises two limiting pieces which are respectively arranged on one side of the second transmission device in the X direction, and the two limiting pieces are arranged on the embroidery machine and can limit the X-direction displacement of the second transmission device. As a further explanation of the above technical solution: In the technical scheme, the eccentric wheel comprises a cylindrical first body, one end part of the cylindrical first body is provided with the eccentric wheel, the eccentric wheel is in transmission connection with the first motor, the ejector rod comprises a second body, one end part of the ejector rod is provided with a slip ring matched with the first body, and the other end part of the ejector rod is provided with a third shaft extending along the Y direction. In the technical scheme, one end part of the eccentric wheel is in transmission connection with the first motor, the other end part of the eccentric wheel is a columnar end part, the ejector rod is sleeved on the columnar end part, one end part of the ejector rod is a slip ring, and the other end part of the ejector rod is provided with a third shaft extending along the Y direction. In the above technical scheme, the connecting rod is of a V-shaped structure and comprises a first arm and a second arm which extend to the outer side of the positioning shaft, the end parts of the first arm and the second arm are U-shaped ports, the opening of the first arm port extends towards the Y direction, the op