CN117026533A - Transmission system for embroidery machine and embroidery machine - Google Patents

Abstract

The invention relates to the technical field of embroidery machines, in particular to a transmission system for an embroidery machine and the embroidery machine, wherein the transmission system comprises: the lower shaft is fixedly connected with a driven gear; the transmission shaft is arranged on one side of the lower shaft and is connected with a first rotating motor for providing driving for the transmission shaft in a transmission manner, and the transmission shaft and the driven gear are in a space: and a transmission assembly for transmitting rotation of the transmission shaft to the driven gear. The transmission device for the embroidery machine can improve the rotation synchronism of the lower shaft, further improve the synchronism of the upper shaft and the lower shaft and optimize the working stability of the embroidery machine.

Description

Transmission system for embroidery machine and embroidery machine

Technical Field

The invention relates to the technical field of embroidery machines, in particular to a transmission system for an embroidery machine and the embroidery machine.

Background

An embroidery machine is a special device for performing embroidery on a fabric. It uses threads or filaments with different colors to embroider various patterns, characters or decorations on the fabric.

The embroidery machine mainly comprises a frame, an upper shaft, a lower shaft, an embroidery machine head, a shuttle bed, a control system, a wire coil, a wire frame and the like. Wherein, the upper shaft drives a plurality of embroidery machine heads to operate, and the lower shaft drives rotating shuttles of a plurality of shuttle beds to operate so as to realize the common operation of the upper shaft and the lower shaft to embroider the cloth.

Along with the technical development and market demands, in order to produce larger, more precise and attractive embroidery works, the length of an embroidery machine is longer and longer, so that the lengths of an upper shaft and a lower shaft are longer and longer, the number of embroidery heads arranged on the upper shaft is increased, the embroidery heads are adapted, the number of shuttle beds arranged on the lower shaft is increased and denser, and the load of the lower shaft is increased; moreover, power is input from the end part of the lower shaft and transmitted to the middle area of the lower shaft, so that deflection of the middle area of the lower shaft is increased, the synchronous rotation of the lower shaft is greatly caused, synchronous rotation with the upper shaft cannot be well realized, the synchronous rotation of the upper shaft and the lower shaft is poorer, accurate embroidery work cannot be realized, various problems are easily generated during the work of the embroidery machine, the stability of the work of the embroidery machine is damaged, the space between the small heads and the two heads of the lower shaft of the machine is extremely small, the synchronous belt is directly used for transmitting the synchronous belt to the lower shaft, only the wide belt of the synchronous belt can be narrowed, oil lubrication is needed for the rotating shuttle transmission gear of the lower shaft, the synchronous belt is inevitably polluted by the direct installation of the synchronous belt beside the gear, the service life of the synchronous belt is greatly reduced under the dual reasons, and the work stability of the machine is seriously influenced.

Disclosure of Invention

One of the purposes of the invention is to provide a transmission system for an embroidery machine, which aims at overcoming the defects of the prior art, can improve the rotation synchronism of a lower shaft, further improve the synchronism of an upper shaft and a lower shaft and optimize the working stability of the embroidery machine.

Another object of the present invention is to provide an embroidery machine having the above transmission system.

The technical solution of the invention is as follows:

a drive system for an embroidery machine, comprising:

the lower shaft is fixedly connected with a driven gear;

the transmission shaft is arranged on one side of the lower shaft and is in transmission connection with a first rotating motor for providing driving for the transmission shaft, and the transmission shaft and the driven gear are in transmission connection with each other:

and a transmission assembly for transmitting rotation of the transmission shaft to the driven gear.

In the scheme, when the lower shaft normally rotates, the first rotating motor can be driven to rotate at the rotating speed synchronous with the lower shaft, the rotation of the transmission shaft is transmitted to the lower shaft through the transmission component and the driven gear, the supplementary transmission of the lower shaft is realized, the synchronism of the rotation of the lower shaft can be improved, the synchronous rotation with the upper shaft is better realized, the synchronism of the rotation of the upper shaft and the rotation of the lower shaft is further improved, and the optimization and the improvement of the working stability of the embroidery machine are realized.

Further preferably, the transmission assembly includes:

the first transmission gear is fixedly connected to the transmission shaft;

and a plurality of second transmission gears which are used for connecting the first transmission gears with the driven gears in a transmission way.

Further preferably, the driven gear and/or the first transmission gear and/or the second transmission gear is a spur gear.

Further preferably, the driven gear, the first transmission gear, and the second transmission gear are helical gears or spur gears.

Further preferably, the extending direction of the transmission shaft is compliant with the extending direction of the lower shaft.

Further preferably, the driven gear is arranged in a shuttle bed of the embroidery machine, the transmission shaft is arranged at the outer side of the shuttle bed, and a clearance hole is formed in the shuttle bed in a manner of adapting to the second transmission gear;

the second transmission gear passes through the avoidance hole and is in transmission connection with the driven gear.

Further as a preferable scheme, the side edge of the avoidance hole is provided with: a support connected to the shuttle race;

the support frame is provided with a second transmission gear installation shaft for the second transmission gear to be connected in a rotating mode.

Further preferably, the first rotating motor comprises an output shaft, and the output shaft is in transmission connection with the transmission shaft through a transmission belt assembly.

Further preferably, the extending direction of the output shaft is compliant with the extending direction of the transmission shaft.

An embroidery machine comprising a drive system for an embroidery machine according to any one of the preceding aspects.

The technical scheme has the main beneficial effects that:

the lower shaft is subjected to supplementary transmission, so that the synchronism of the rotation of the lower shaft can be improved, the synchronous rotation of the lower shaft and the upper shaft can be better realized, the synchronism of the rotation of the upper shaft and the lower shaft can be further improved, and the optimization and the improvement of the working stability of the embroidery machine are realized.

Further or more detailed benefits will be described in connection with specific embodiments.

Drawings

The invention is further described with reference to the accompanying drawings:

fig. 1 is a schematic diagram of the overall structure.

Fig. 2 is a schematic diagram of a transmission structure.

Fig. 3 is a schematic view of the mounting structure of the transmission assembly.

Fig. 4 is a schematic view of the installation of the top cover and the protective cover.

The figure shows: the lower shaft-1, the driven gear-101, the transmission shaft-2, the first rotating motor-3, the output shaft-301, the transmission component-4, the first transmission gear-401, the second transmission gear-402, the shuttle bed-5, the avoidance hole-501, the supporting frame-502, the second transmission gear mounting shaft-503, the transmission belt component-6, the first transmission wheel-601, the first transmission belt-602, the connecting rod-603, the second transmission wheel-604, the third transmission wheel-605, the second transmission belt-606, the fourth transmission wheel-607, the first supporting frame-7, the second supporting frame-8, the top cover-9, the protective cover-10, the first shaft piece-11 a, the second shaft piece-11 b, the third transmission belt-12, the second shaft piece rotating motor-13, the second shaft piece rotating motor output shaft-1301, the fourth transmission belt-14 and the embroidery machine head-15.

Detailed Description

The invention is illustrated by the following examples in which:

embodiment one:

the drive system of an embroidery machine, for example as shown in fig. 1 and 2, mainly comprises an upper shaft and a lower shaft 1.

Wherein, a plurality of shuttles 5 are arranged on the lower shaft 1 at intervals along the extending direction of the lower shaft 1. The lower shaft 1 can rotate independently of the upper shaft, namely, the end part of the lower shaft 1 can be directly connected with a rotating motor in a transmission way, and the rotating motor can directly drive the lower shaft 1 to rotate.

Alternatively, the lower shaft 1 may be drivingly connected to the upper shaft, and the rotation of the upper shaft may be used to drive the rotation of the lower shaft 1. The upper shaft is a shaft piece which is connected with a rotating motor and can rotate to drive the embroidery machine head to work.

For example, in fig. 1, there is a first shaft member 11a, and a plurality of embroidery heads 15 are provided on the first shaft member 11a at intervals along the extending direction of the first shaft member 11 a. The end part of the first shaft element 11a can be connected with a rotating motor in a transmission way, and the rotating motor drives the first shaft element 11a to rotate, so that the embroidery machine head 15 can be driven to perform needle puncturing action. At this time, the first shaft member 11a serves as an upper shaft in the present invention.

At the same time, the lower shaft 1 is in driving connection with the first shaft element 11a, which now serves as the upper shaft. Specifically, in this embodiment, as shown in fig. 1, the end of the lower shaft 1 is in transmission connection with the end of the first shaft member 11a through a transmission belt structure, so that the first shaft member 11a rotates and drives the lower shaft 1 to synchronously rotate, thereby driving the rotating shuttle of the shuttle bed 5 to cooperate with the needle in the embroidery machine head 15 to realize a complete embroidery motion. Of course, besides the driving belt structure, the end part of the lower shaft 1 can be connected to the first shaft member 11a in a driving way through a gear structure, so that the lower shaft 1 can be synchronously rotated while the first shaft member 11a rotates.

Alternatively, as shown for example in fig. 2, there is a first shaft element 11a, and a second shaft element 11b which is compliant (preferably parallel, but allowing for a certain angular deviation in view of production and installation process constraints) to the first shaft element 11 a. The embroidery heads 15 are disposed on the first shaft 11a at intervals along the extending direction of the first shaft 11 a.

The second shaft member 11b is on the one hand drivingly connected to a second shaft member rotation motor output shaft 1301 of the second shaft member rotation motor 13 via a fourth drive belt 14; on the other hand, the first shaft element 11a is connected in a transmission way through a plurality of third transmission belts 12; the second shaft member rotation motor 13 drives the second shaft member 11b to rotate by driving the second shaft member rotation motor output shaft 1301 to rotate, and then drives the first shaft member 11a to rotate, so that the embroidery machine head 15 can be driven to perform the needle puncturing action. At this time, the second shaft member 11b serves as an upper shaft in the present invention.

Meanwhile, the lower shaft 1 enables the lower shaft 1 to be drivingly connected to the first shaft member 11a and thus to the second shaft member 11b, which is the upper shaft at this time, by drivingly connecting the end of the lower shaft 1 to the end of the first shaft member 11a through a belt structure as described above.

It should be noted that, the second shaft member 11b may be rotatably connected to a plurality of bearings fixedly connected to the frame of the embroidery machine, that is, the plurality of bearings jointly support the second shaft member 11b, and by providing a plurality of third driving belts 12, especially by providing a plurality of third driving belts 12 at intervals in the middle area of the first shaft member 11a, the second shaft member 11b is in driving connection with the first shaft member 11a, so that not only can the first shaft member 11a be driven to rotate, but also the middle area of the first shaft member 11a can be driven to be supplemented, thereby solving the problems of increased load caused by the long length of the first shaft member 11a and the large number of embroidery machine heads 15, and further poor rotation synchronism of the first shaft member 11 a.

For the lower shaft 1, no matter the lower shaft 1 rotates independently of the upper shaft, or the lower shaft 1 can be connected to the upper shaft in a transmission way, a plurality of shuttles 5 are arranged on the lower shaft 1 at intervals along the extending direction of the lower shaft 1, so that the load of the lower shaft 1 is increased; moreover, the transmission of the end part of the lower shaft 1 is difficult to transmit to the middle area of the shaft piece, so that the deflection of the middle area of the lower shaft 1 is increased, the synchronous rotation of the lower shaft 1 is greatly problematic, and further the synchronous rotation with the upper shaft cannot be well realized, so that the synchronous rotation of the upper shaft and the lower shaft is poorer, the accurate embroidery work cannot be realized, various problems are easily generated during the work of the embroidery machine, and the stability of the work of the embroidery machine is damaged.

Therefore, the lower shaft 1 needs to be supplemented in transmission.

However, on one hand, the arrangement of the shuttle beds 5 is denser, the transmission belts with larger widths cannot be installed to directly carry out additional transmission connection on the lower shaft 1, and only the transmission belts with smaller widths can be installed, so that the transmission effect is poor, or a plurality of small-width transmission belts are needed, and the whole transmission structure is complex and the cost is high; on the other hand, more lubricating oil exists in the shuttle race 5, and the extra transmission connection is directly carried out on the lower shaft 1 through the small-width transmission belt, so that transmission slip is easy to occur, and the oil-proof and anti-slip problems of the small-width transmission belt need to be considered.

In particular, in the case of small-head embroidery machines, the shed 5 is arranged more closely, which on the one hand does not leave enough space on the lower shaft 1 to mount a synchronous pulley having a certain width; on the other hand, due to the compact arrangement structure, the requirement on lubricating oil is larger, the synchronous belt is easier to slip, and the problem that the service life of the synchronous belt is influenced due to the fact that the lubricating oil erodes the synchronous belt is also easier to occur.

In this embodiment, as shown in fig. 2 to 4, a driven gear 101 is fixedly connected to the lower shaft 1, and the driven gear 101 is preferably disposed in a middle region of the lower shaft 1; and a driving shaft 2 is provided at one side of the lower shaft 1, the driving shaft 2 is drivingly connected with a first rotating motor 3 for driving the same, and a driving assembly 4 for transmitting the rotation of the driving shaft 2 to the driven gear 101, such as a gear set constituted by a first driving gear 401 and a second driving gear 402 mentioned below, or a chain, exists between the driving shaft 2 and the driven gear 101.

Like this, when lower axle 1 carries out normal rotation work, can order about first rotation motor 3 order about transmission shaft 2 rotation with the synchronous rotational speed of lower axle 1 to accessible drive assembly 4 and driven gear 101 transmit the rotation of transmission shaft 2 to lower axle 1, realize the supplementary transmission to lower axle 1, can improve lower axle 1 self pivoted synchronism, with better realization and last axle synchronous rotation, and then improve upper axle, lower axle 1 pivoted synchronism, realize the optimization promotion to embroidery machine job stabilization nature.

Compared with a transmission belt, the rigid driven gear 101 has smaller requirement on the size, stable transmission can be realized by adopting the driven gear 101 with smaller width, and the driven gear 101 can be more suitable for the narrow space requirement on the lower shaft 1. Moreover, the driven gear 101 is in transmission connection with the transmission shaft 2 arranged on the side edge of the lower shaft 1 through the transmission assembly 4, so that the transmission connection point of the transmission belt assembly 5 can be moved outwards, namely, the transmission connection point of the transmission belt assembly 5 is moved to the transmission shaft 2 from the lower shaft 1 which is connected with a transmission belt with narrow space and inconvenient width, and the transmission shaft 2 can be installed at a more open position according to the actual environment. Particularly, the device can be more suitable for the assembly environment of the small-head-distance embroidery machine to carry out transmission supplement on the lower shaft 1, improves the self-rotation synchronism of the lower shaft 1, and further better realizes the synchronous rotation with the upper shaft, further improves the rotation synchronism of the upper shaft and the lower shaft 1, and realizes the optimization and the improvement of the working stability of the embroidery machine.

The transmission shaft 2 may be directly fixedly connected to the output shaft 301 of the first rotary motor 3, so that the first rotary motor 3 can drive the transmission shaft 2 to rotate.

Alternatively, as shown in fig. 2 to 4, the output shaft 301 of the first rotary motor 3 in this embodiment is drivingly connected to the drive shaft 2 through the drive belt assembly 6. And the extending direction of the output shaft 301 is preferably compliant (preferably parallel to, but in consideration of production and installation process limitations, a certain angle deviation is allowed) to the extending direction of the transmission shaft 2, so that the output shaft 301 can transmit rotation to the lower shaft 1 more smoothly and smoothly, thereby ensuring the supplementary stability of the transmission of the lower shaft 1 and further optimizing the working stability of the embroidery machine.

Specifically, two first supporting frames 7 with intervals are fixedly connected to the frame of the embroidery machine, two second supporting frames 8 with intervals are fixedly connected to the frame of the embroidery machine, the transmission shaft 2 is simultaneously connected to the two first supporting frames 7 in a rotating mode, the connecting rod 603 is simultaneously connected to the two second supporting frames 8 in a driving mode, and the extending direction of the connecting rod 603 is compliant (preferably parallel to, but allows a certain angle deviation in consideration of production and installation process limitations) to the extending direction of the transmission shaft 2. And the transmission shaft 2 is fixedly connected with a first transmission wheel 601, the connecting rod 603 is fixedly connected with a second transmission wheel 604 and a third transmission wheel 605, and the output shaft 301 of the first rotary motor 3 is fixedly connected with a fourth transmission wheel 607. The first driving wheel 601 is in driving connection with the second driving wheel 604 through a first driving belt 602, and the third driving wheel 605 is in driving connection with the fourth driving wheel 607 through a second driving belt 606. So that the output shaft 301 of the first rotating motor 3 can transmit rotation to the transmission shaft 2 through the second transmission belt 606 and the first transmission belt 602 in sequence.

As shown in fig. 3 and fig. 4, the transmission assembly 4 in this embodiment includes a first transmission gear 401 fixedly connected to the transmission shaft 2, and a plurality of (one or more in this embodiment) second transmission gears 402 drivingly connecting the first transmission gear 401 to the driven gear 101, wherein the first transmission gear 401 is disposed outside the space between the two support frames 12, so as to avoid interference with the mounting structure of the first transmission wheel 504. Through the transmission component 4 adopting the gear set structure, the power of the transmission shaft 2 can be stably transmitted to the lower shaft 1, and lubricating oil in the shuttle bed 5 can directly lubricate the gear structure, so that the gear transmission is smoother and smoother.

Further, the extending direction of the transmission shaft 2 may be disposed at an angle to the extending direction of the lower shaft 1, for example, using a worm gear structure.

In this embodiment, as shown in fig. 3, the extending direction of the transmission shaft 2 is preferably compliant (preferably parallel to, but in consideration of production and installation process limitations, a certain angle deviation is allowed) with the extending direction of the lower shaft 1, so that the transmission shaft 2 can transmit rotation to the lower shaft 1 more smoothly and smoothly, thereby ensuring the supplementary stability of the transmission of the lower shaft 1 and further optimizing the working stability of the embroidery machine.

Meanwhile, the number of the second transmission gears 402 may be even or odd, and when the number of the transmission gears 402 is odd, the rotation direction of the transmission shaft 2 is the same as the rotation direction of the lower shaft 1, and the rotation direction of the output shaft 301 of the first rotation motor 3 may be controlled to be the same as the rotation direction of the lower shaft 1.

In this embodiment, in order to make the rotation of the transmission shaft 2 be transmitted to the lower shaft 1 more smoothly and smoothly, the driven gear 101 and/or the first transmission gear 401 and/or the second transmission gear 402 are cylindrical gears.

Meanwhile, the driven gear 101, the first transmission gear 401, and the second transmission gear 402 are helical gears or spur gears.

Further, at the time of installation, the drive shaft 2 may be partially disposed inside the shed 5, partially disposed outside the shed 5, and the first transverse belt 501 is drivingly connected to the portion of the drive shaft 2 disposed outside the shed 5.

However, the internal structure of the shed 5 is considered to be relatively narrow, and the drive shaft 2 is likely to interfere with other members in the shed 5. In this embodiment, as shown in fig. 3, the driven gear 101 is disposed in the shuttle 5 of the embroidery machine, the transmission shaft 2 is disposed outside the shuttle 5, and the shuttle 5 is provided with a clearance hole 501 adapted to the second transmission gear 402; the second transmission gear 402 is drivingly connected to the driven gear 101 through the clearance hole 501. The transmission shaft 2 can be externally arranged on the shuttle race 5, so that the influence of the lubricating oil in the shuttle race 5 on the transmission connection of the first transverse transmission belt 501 on the transmission shaft 2 can be better avoided.

Meanwhile, as shown in fig. 3, considering the space requirement of the embroidery machine, the present embodiment is provided with a supporting frame 502 connected to the shuttle 5 at the side of the avoidance hole 501; the support frame 502 is provided with a second transmission gear mounting shaft 503 to which the second transmission gear 402 is rotatably connected, and the second transmission gear 402 can be directly rotatably connected to the second transmission gear mounting shaft 503.

Further, as shown in fig. 4, a top cover 9 fixedly connected to the shuttle 5 may be disposed above the driven gear 101 and the inner portion of the shuttle 5 where the second transmission gear 402 is disposed, so as to form a covering protection for the driven gear 101 and the inner portion of the shuttle 5 from above, and prevent some thread ends, particles, etc. from falling to the driven gear 101 above the shuttle 5, thereby affecting the transmission of the driven gear 101.

As shown in fig. 4, a protective cover 10 for protecting the first transmission gear 401 and the second transmission gear 402 from being arranged outside the shuttle bed 5 can be fixedly connected on the shuttle bed 5, so that the transmission of foreign objects interfering among the driven gear 101, the first transmission gear 401 and the second transmission gear 402 is reduced, the supplementary stability of the transmission of the lower shaft 1 is ensured, and the working stability of the embroidery machine can be optimized.

Embodiment two:

an embroidery machine comprising a drive system for an embroidery machine according to any one of the embodiments, see in particular embodiment one, which will not be repeated here.

The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the scope of the invention. In addition, references to the terms "vertical", "horizontal", "front", "rear", etc., in the embodiments of the present invention indicate that the apparatus or element in question has been put into practice, based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product is conventionally put in use, merely for convenience of description and to simplify the description, but do not indicate or imply that the apparatus or element in question must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. It should be further noted that, unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," and the like in the description are to be construed broadly as, for example, "connected," either permanently connected, detachably connected, or integrally connected; either directly or indirectly through intermediaries, or in communication with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances. The invention will be described in detail below with reference to the drawings in connection with embodiments.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A drive system for an embroidery machine, comprising:

a lower shaft (1), wherein a driven gear (101) is fixedly connected on the lower shaft (1);

a transmission shaft (2) is arranged at one side of the lower shaft (1) and is in transmission connection with a first rotating motor (3) for providing driving for the lower shaft, and the transmission shaft (2) and the driven gear (101) are arranged between each other:

a transmission assembly (4) for transmitting the rotation of the transmission shaft (2) to the driven gear (101).

2. A drive system for an embroidery machine as claimed in claim 1, wherein: the transmission assembly (4) comprises:

a first transmission gear (401) fixedly connected to the transmission shaft (2);

and a plurality of second transmission gears (402) which are used for connecting the first transmission gears (401) with the driven gears (101) in a transmission way.

3. A drive system for an embroidery machine as claimed in claim 2, wherein: the driven gear (101), and/or the first transmission gear (401), and/or the second transmission gear (402) is a spur gear.

4. A drive system for an embroidery machine as claimed in claim 2, wherein: the driven gear (101), the first transmission gear (401), and the second transmission gear (402) are helical gears or spur gears.

5. A drive system for an embroidery machine as claimed in claim 2, wherein: the extension direction of the transmission shaft (2) is compliant with the extension direction of the lower shaft (1).

6. A drive system for an embroidery machine as claimed in claim 2, wherein: the driven gear (101) is arranged in the shuttle bed (5) of the embroidery machine, the transmission shaft (2) is arranged at the outer side of the shuttle bed (5), and a clearance hole (501) is formed in the shuttle bed (5) in a manner of adapting to the second transmission gear (402);

the second transmission gear (402) is connected to the driven gear (101) in a transmission manner through the clearance hole (501).

7. A drive system for an embroidery machine as claimed in claim 6, wherein: the side of the avoidance hole (501) is provided with: a support (502) connected to the shuttle (5);

the support frame (502) is provided with a second transmission gear mounting shaft (503) for rotationally connecting the second transmission gear (402).

8. A drive system for an embroidery machine according to any one of claims 1 to 7, wherein: the first rotating motor (3) comprises an output shaft (301), and the output shaft (301) is in transmission connection with the transmission shaft (2) through a transmission belt assembly (6).

9. A drive system for an embroidery machine as claimed in claim 8, wherein: the direction of extension of the output shaft (301) is adapted to the direction of extension of the drive shaft (2).

10. An embroidery machine, characterized in that: comprising a drive train for an embroidery machine according to any one of claims 1 to 9.