JP3211814U - Timing belt drive sewing machine - Google Patents

Abstract

A timing belt drive sewing machine is provided. A timing belt transmission sewing machine includes a chassis, a rotary shuttle assembly, a movable base, a rotary sleeve, and a head. The rotary shuttle assembly 20 is installed in the chassis 10, and the movable table 30 is installed outside the chassis 10 so as to reciprocate back and forth. The rotation of the second timing belt wheel 73 is interlocked through the motor 71, the second timing belt wheel 73 is interlocked with the rotation of the first timing belt wheel 72 through the timing belt 74, and the rotation sleeve 40 is thus rotated. Thus, it does not slip during operation, has an advantage that the transmission ratio is accurate, transmission efficiency is high, the structure is compact, and maintenance is convenient. [Selection] Figure 2

Description

  The present invention relates to a sewing machine, and more particularly, to a timing belt transmission sewing machine.

Sewing machines are inseparable from our daily lives.
The clothes you wear are sewn with a sewing machine, and if the textiles are torn, repair them with the sewing machine.
In daily life, it may be necessary to adopt a specific sewing machine for the circular property.
These sewing machines are provided with a rotating sleeve, and the annular article is fixed on the rotating sleeve and rotates according to the rotating sleeve.
In the conventional technique, the rotating sleeve is pulled by a wire to realize rotation.

  However, the rotating sleeve of this type of sewing machine does not have high transmission efficiency, is slippery, cannot be seamlessly connected, and is troublesome to maintain.

  The prior art has the disadvantages that the transmission efficiency of the rotating sleeve is not high, it is slippery, seamless connection is not possible, and maintenance is troublesome.

  The present invention relates to a timing belt transmission sewing machine that can solve the problem of low transmission efficiency.

A timing belt transmission sewing machine according to the present invention includes a chassis, a rotary shuttle assembly, a movable base, a rotary sleeve, and a head.
A fixed base is provided on the chassis.
The rotary shuttle assembly is installed in a fixed base.
The movable table is installed outside the fixed table so as to reciprocate back and forth, and the movable table is reciprocated back and forth in conjunction with the first drive mechanism.
The rotating sleeve is installed on a movable table so as to reciprocate and reciprocates back and forth according to the movable table.
The rotating sleeve reciprocally rotates in conjunction with the second drive mechanism.
The second drive mechanism includes a motor, a first timing belt wheel, a second timing belt wheel, and a timing belt.
The motor is fixed on a movable base, and the first timing belt wheel is fitted on a rotating sleeve and fixed.
The second timing belt wheel is mounted on the output shaft of the motor, and the timing belt is connected to the first timing belt wheel and the second timing belt wheel.
The head is positioned directly above the rotary hook assembly, and the head and the rotary hook assembly are operated by being interlocked by a third drive mechanism.

  In one embodiment, the second timing belt wheel is located directly above the first timing belt wheel.

In one embodiment, a pinch roller is installed on the movable table.
The pinch roller presses and holds on the outer surface of the timing belt and is positioned between the first timing belt wheel and the second timing belt wheel.

  In one embodiment, the two pinch rollers are installed symmetrically, and both of the two pinch rollers press and hold on the outer surface of the timing belt.

In one embodiment, a fixing sleeve is installed at the outer end of the fixing base.
The rotating sleeve is fitted and installed outside the fixed sleeve, and reciprocates along the fixed sleeve.

Compared with existing technology, the present invention clearly has advantages and effects.
The present invention interlocks the rotation of the second timing belt wheel through the motor, the second timing belt wheel interlocks the rotation of the first timing belt wheel through the timing belt, and thus the rotating sleeve rotates.
Therefore, the structure of the present invention does not slip at the time of operation, the transmission ratio is accurate, the transmission efficiency is high, the structure is compact, and the maintenance is convenient compared with the existing technology sewing machine that is pulled by the wire.

It is an assembly solid schematic diagram of an embodiment of the present invention. It is the assembly solid figure which concealed the part of part of embodiment of this invention. FIG. 3 is an assembled three-dimensional view in which some parts are hidden at another angle according to an embodiment of the present invention. It is local sectional drawing of embodiment of this invention. It is another kind of local sectional view of the embodiment of the present invention.

(One embodiment)
As shown in FIGS. 1 to 5, the specific structure of the embodiment of the present invention includes a chassis 10, a rotary shuttle assembly 20, a movable base 30, a rotary sleeve 40, and a head 50.

A fixed base 11 is provided on the chassis 10.
The rotary hook assembly 20 is installed in the fixed base 11.

  The movable table 30 is installed outside the fixed table 11 so as to reciprocate back and forth, and the movable table 30 is interlocked with the first drive mechanism 60 and reciprocally moved back and forth.

The rotating sleeve 40 is installed on the movable table 30 so as to reciprocate and reciprocates back and forth according to the movable table 30.
The rotary sleeve 40 reciprocally rotates in conjunction with the second drive mechanism 70.
The second drive mechanism 70 includes a motor 71, a first timing belt wheel 72, a second timing belt wheel 73, and a timing belt 74.
The motor 71 is fixed on the movable table 30, and the first timing belt wheel 72 is fitted on the rotating sleeve 40 and fixed.
The second timing belt wheel 73 is mounted on the output shaft of the motor 71, and the timing belt 74 is connected to the first timing belt wheel 72 and the second timing belt wheel 73.

In the present embodiment, the second timing belt wheel 73 is located directly above the first timing belt wheel 72.
A pinch roller 80 is installed on the movable table 30.
The pinch roller 80 presses and presses on the outer surface of the timing belt 74 and is positioned between the first timing belt wheel 72 and the second timing belt wheel 73.
In addition, two pinch rollers 80 are installed symmetrically, and both of the two pinch rollers 80 press and hold on the outer surface of the timing belt 74, tightly press the timing belt 74, and the timing belt 74 The contact area of the first timing belt wheel 72 is increased.

  The head 50 is located immediately above the rotary hook assembly 20, and the head 50 and the rotary hook assembly 20 are operated by being linked by a third drive mechanism 90.

A fixing sleeve 12 is installed at the outer end of the fixing base 11.
The rotary sleeve 40 is fitted and installed outside the fixed sleeve 12, and performs a reciprocating rotary motion along the fixed sleeve 12, whereby the rotary motion of the rotary sleeve 40 becomes more stable and accurate.

At the time of operation, the article to be sewn is placed on the rotating sleeve 40 and fixed.
When the equipment is activated, the third drive mechanism 90 operates the head 50 and the rotary hook assembly 20 simultaneously to complete the sewing operation for the property.
In the process of the sewing operation, the first drive mechanism 60 interlocks the movable base 30 to move back and forth back and forth, and the second drive mechanism 70 interlocks and rotates the rotary sleeve 40 based on program settings.
Thereby, the head 50 and the rotary hook assembly 20 perform a sewing operation on different positions of the property.

In summary, the present invention interlocks the rotation of the second timing belt wheel through the motor, the second timing belt wheel interlocks the rotation of the first timing belt wheel through the timing belt, and thus the rotating sleeve rotates.
The present invention has advantages in that it does not slip during operation, the transmission ratio is accurate, the transmission efficiency is high, the structure is compact, and the maintenance is convenient, compared to the sewing machine of the existing technology that is pulled by a wire.

  The above-described embodiments of the present invention do not limit the present invention. Therefore, the scope protected by the present invention is based on the scope of claims for utility model registration to be described later.

DESCRIPTION OF SYMBOLS 10 Chassis 11 Fixed base 12 Fixed sleeve 20 Rotary shuttle assembly 30 Movable base 40 Rotary sleeve 50 Head 60 First drive mechanism 70 Second drive mechanism 71 Motor 72 First timing belt wheel 73 Second timing belt wheel 74 Timing belt 80 Pinch roller 90 Third drive mechanism

Claims (1)

Timing belt transmission sewing machine having a chassis, a rotary hook assembly, a movable base, a rotary sleeve and a head,
On the chassis, there is a fixed base,
The rotary hook assembly is installed in a fixed base;
The movable table is installed outside the fixed table so as to reciprocate back and forth, and the movable table is interlocked with the first drive mechanism and reciprocally moved back and forth.
The rotating sleeve is installed on a movable table so as to reciprocate and reciprocates back and forth according to the movable table, the rotating sleeve is reciprocally rotated in conjunction with a second drive mechanism,
The second drive mechanism has a motor, a first timing belt wheel, a second timing belt wheel and a timing belt,
The motor is fixed on a movable base, the first timing belt wheel is fitted and fixed on a rotating sleeve, the second timing belt wheel is mounted on an output shaft of the motor, and the timing The belt is connected to the first timing belt wheel and the second timing belt wheel,
The timing belt transmission sewing machine according to claim 1, wherein the head is positioned directly above the rotary hook assembly, and the head and the rotary hook assembly are operated in conjunction with a third drive mechanism.

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