WO2017200281A1 - Automatic bobbin supply apparatus - Google Patents

Abstract

The present invention relates to an automatic bobbin supply apparatus and, more particularly, to an automatic bobbin supply apparatus which automatically withdraws bobbins one by one from a bobbin cartridge loaded with the bobbins and mounts the bobbins to a hook. To this end, the automatic bobbin supply apparatus of the present invention comprises: a bobbin cartridge for accommodating at least two bobbin cases loaded with the bobbin; a bobbin cartridge holder for fixedly installing the bobbin cartridge to a hook base of a sewing machine with a hook formed therein; and a cylinder for mounting the bobbin case accommodated in the bobbin cartridge to the hook.

Description

Bobbin Auto Feeder

The present invention relates to a bobbin automatic feeder, and relates to a bobbin automatic feeder that automatically pulls out one bobbin from a bobbin-mounted bobbin cartridge and mounts it on a hook.

In the sewing machine, the bobbin wound with the lower thread is accommodated in the bobbin case, and the bobbin case is attached to the sewing machine hook. The upper thread and bobbin lower thread supplied from the sewing machine needle are unwound and sewing of textile products such as clothing and leather products is performed.

Since the bobbin bobbin winding amount is extremely small compared to the upper thread supply amount, it is necessary to take out the bobbin from the sewing machine hook and replace the bobbin with the bobbin thread whenever the bobbin bobbin thread is used away. In particular, in industrial embroidery sewing machines, it is common that a surplus space is narrow below the sewing machine shaft. For this reason, a worker's hand is hard to reach a sewing hook, it requires a long time for replacement of a bobbin case, and there exists inconvenience that the work efficiency of sewing falls.

Therefore, a method for automatically replacing the bobbin or bobbin case is required.

An object of the present invention is to propose a method for automatically replacing the bobbin wound bobbin thread.

Another object of the present invention is to propose a method for automatically separating the bobbin exhausted bobbin thread from the hook.

Another problem to be solved by the present invention is to propose a method for reducing the replacement time of the bobbin inserted into the sewing hook.

To this end, the bobbin automatic supply device of the present invention is a bobbin cartridge that is equipped with at least two bobbin case is mounted, a bobbin cartridge holder for fixing the bobbin cartridge to the hook base of the sewing machine with a hook, bobbin accommodated in the bobbin cartridge And a cylinder for attaching the case to the hook.

To this end, the bobbin automatic supply device of the present invention includes a bobbin cartridge in which at least two bobbin-mounted bobbin cases are accommodated, and a cylinder for supplying a bobbin case accommodated in the bobbin cartridge to a hook base of a sewing machine having a hook. Is formed in the forward and backward moving cylinder to move in the front and rear direction, the end of the forward and backward moving cylinder, the bobbin case accommodating part is accommodated in the end portion and the bobbin case is inserted between the main body and the latch of the bobbin case, A bobbin case inlet portion formed in a rod type is formed, and includes a rotating cylinder for rotating the bobbin case accommodating portion.

To this end, the bobbin automatic supply device of the present invention includes a bobbin cartridge in which at least two bobbin-mounted bobbin cases are accommodated, and a cylinder for supplying a bobbin case accommodated in the bobbin cartridge to a hook base of a sewing machine having a hook. Is formed in the end of the first rotating cylinder, the first rotary cylinder rotated by an angle, the bobbin case accommodating portion is accommodated in the end portion of the bobbin case and is inserted between the main body and the latch of the bobbin case, A bobbin case inlet formed in a rod type is formed, and includes a second rotating cylinder for rotating the bobbin case accommodating part.

The bobbin automatic feeding device according to the present invention has an advantage of automatically replacing bobbins when the bobbin wound around the bobbin is exhausted. Therefore, when using another bobbin automatic feeder in the present invention, the manager does not need to replace the bobbin wound around the bobbin every time, it is possible to manage a lot of sewing machine in preparation for the existing.

In addition, since the bobbin automatic feeder proposed in the present invention is small in size, the bobbin automatic feeder can be easily assembled and used on the side of the hook base having a narrow space for yard.

In addition, the bobbin exhausted bobbin exhaust can be collected in a separate collection, it can be reused by winding the bobbin thread in the bobbin later.

1 illustrates a bobbin cartridge in which a bobbin case is stored according to an embodiment of the present invention.

2 illustrates a bobbin cartridge in which a bobbin case is stored according to an embodiment of the present invention.

Figure 3 shows an example of mounting the bobbin cartridge to the sewing machine according to an embodiment of the present invention.

Figure 4 shows an example in which the bobbin cartridge is mounted on the hook base side according to an embodiment of the present invention.

5 to 9 is a view showing a driving process of the automatic bobbin supply apparatus according to an embodiment of the present invention.

10 to 13 illustrate an example of supplying a bobbin from a bobbin cartridge formed at a front end of a hook base according to an embodiment of the present invention.

14 to 16 illustrate an example of supplying a bobbin from a bobbin cartridge formed on a lower hook base according to an embodiment of the present invention.

The foregoing and further aspects of the present invention will become more apparent through the preferred embodiments described with reference to the accompanying drawings. Hereinafter will be described in detail to enable those skilled in the art to easily understand and reproduce through this embodiment of the present invention.

1 illustrates a bobbin cartridge in which a bobbin case is stored according to an embodiment of the present invention. Hereinafter, a bobbin cartridge containing the bobbin case of the present invention will be described in detail with reference to FIG. 1.

According to FIG. 1, the bobbin cartridge 100 includes a housing case 100a, an elastic member 100b, a moving member 100c, a shaft 100d, and a bobbin holder 100e. Of course, in addition to the above-described configuration may be included in the bobbin cartridge proposed in the present invention.

The accommodating case 100a is configured as a bar type with an empty inside, and one side has an open state. The interior of the housing case 100a is configured in a circular column type according to the shape of the bobbin or bobbin case.

The elastic member 100b is located inside the accommodating case 100a, and in particular, the other side of the elastic member 100b is fixed to the other side of the accommodating case 100a, and one side of the elastic member 100b is of the accommodating case 100a. Move in one direction. That is, when a force is applied to the elastic member 100b from the outside, the other side of the elastic member 100b moves in the other direction of the housing case 100a, and when the applied force is removed, one side of the elastic member 100b is the housing case. It moves to one side of 100a.

The shaft 100d is located inside the accommodating case 100a and is formed in a rod type in the longitudinal direction of the accommodating case 100a.

The moving member 100c is located at the end of the moving member 100c in the housing case 100a. The moving member 100c has a through hole formed in the center thereof, and the formed through hole maintains a state penetrated by the shaft 100d. The moving member 100c is in close contact with one side of the elastic member 100b and moves together with the movement of the elastic member 100b. That is, when one side of the elastic member 100b moves in one direction of the housing case 100a, the moving member 100c also moves in one direction of the housing case 100a.

As described above, the movable member 100c has a through-hole formed at one side thereof, and one side has a flat plate shape.

The bobbin holder 100e is located at the end of the shaft 100d and is composed of a hemispherical type.

In addition, the cross section of the shaft 100d and the cross section of the bobbin holder 100e are different from each other. As described above, the cross section of the bobbin holder 100e is formed in a circular shape, whereas the cross section of the shaft 100d is formed of a semicircle on one side and an ellipse on the other side. That is, the area of the cross section of the bobbin holder 100e is relatively large compared to the area of the cross section of the shaft 100d. Of course, the cross section of the shaft 100d can be configured in a circular shape, but the area of the cross section of the shaft 100d is formed relatively smaller than the area of the cross section of the bobbin holder 100e. Therefore, the bobbin-mounted bobbin case (see FIG. 2: 200) can freely move within the shaft 100d, while the bobbin holder 100e is blocked from moving.

2 illustrates a bobbin cartridge in which a bobbin case is stored according to an embodiment of the present invention. As shown in FIG. 2, the bobbin case is accommodated in the bobbin case while penetrating through the shaft.

Figure 3 shows an example of mounting the bobbin cartridge to the sewing machine according to an embodiment of the present invention. Hereinafter, an example of mounting a bobbin cartridge to a sewing machine according to an embodiment of the present invention will be described in detail with reference to FIG. 3.

According to Fig. 3, the sewing machine is equipped with a bobbin cartridge. In particular, the bobbin cartridge is fixedly mounted to the side of the hook base (500 in Fig. 4) of the sewing machine by using the bobbin cartridge holder 300.

4 is a cross-sectional view of the bobbin cartridge is mounted on the side of the hook base according to an embodiment of the present invention.

As shown in FIG. 4, the bobbin cartridge 100 is created on the side of the hook base 400, and as described above, the bobbin cartridge 100 has the side of the hook base 500 using the bobbin cartridge holder 300. It is fixedly mounted on.

In addition, when the bobbin thread wound on the bobbin mounted on the hook base 500 is exhausted, the bobbin is collected in the bobbin collection box 400. According to Figure 4, it can be seen that the bobbin collection box 400 is formed on the lower side of the hook base 500.

Hereinafter, a process of automatically supplying a bobbin (or bobbin-inserted bobbin case) to the hook base will be described.

5 to 9 is a view showing the operation of the bobbin automatic supply apparatus according to an embodiment of the present invention. In particular, Figure 4 shows the initial state of the bobbin automatic supply apparatus according to an embodiment of the present invention.

Referring to FIG. 5, the bobbin automatic supply device includes a a cylinder 600, a b cylinder 610, a c cylinder 620, a bobbin case accommodating part 610 a, a bobbin case inlet part 620 a, and a bobbin cartridge 100. ), A bobbin case 200 and a hook 502. Of course, in addition to the above-described configuration, other configurations may be included in the bobbin automatic supply device proposed in the present invention.

The a-th cylinder 600 receives the b-th cylinder 610 and the b-th cylinder 610 receives the c-cylinder 620. That is, the b-th cylinder 610 also moves in the left-right direction by moving in the left-right direction of the a-th cylinder 600, and the c-cylinder 620 also moves up and down in the vertical direction of the b-cylinder 610. Go to. Of course, the c-cylinder 620 accommodated in the b-cylinder 610 by moving in the left-right direction of the a-cylinder 600 also moves in the left-right direction.

In detail, the b th cylinder 610 is connected to the end of the a th cylinder 600, and the b th cylinder 610 is moved by the movement of the a th cylinder 600.

A bobbin case accommodating part 610a is formed at the end of the b th cylinder 610 to accommodate a part of the bobbin case 200. That is, the c-th cylinder 620 and the bobbin case accommodating part 610a are formed at the end of the b-th cylinder 610. As shown in FIG. 5, two bobbin case accommodating parts 610a are formed at the end of the b-th cylinder 610.

The c-th cylinder 620 is formed at the end of the b-th cylinder 610, the c-th cylinder 620 is inserted between the main body 200a and the latch 200b of the bobbin case 200, and extends a predetermined length It includes a bobbin case inlet 620a. Of course, as shown in FIG. 5, the c-cylinder 620 ends include two bobbin case inlets 620a.

According to FIG. 6, the b th cylinder 610 moves upward. That is, the bobbin case accommodating part 610a formed at the end of the b cylinder 610 is moved to the bobbin case 200 accommodated in the bobbin cartridge 100 and the bobbin case accommodated in the hook 502. Move in the direction of A portion of the bobbin case is accommodated in the bobbin case accommodating part 610a formed at the end of the second cylinder by the movement of the b-cylinder 610, and thus the bobbin case is fixed to the bobbin case accommodating part 610a.

Then, the c-cylinder 620 moves to the left direction. When the c-th cylinder 620 moves in the left direction, the bobbin case inlet 620a formed at the end of the c-cylinder 620 is introduced between the main body 200a and the latch 200b of the bobbin case. When the bobbin case lead-in 620a is inserted between the main body 200a and the latch 200b of the bobbin case, the angle between the main body 200a and the latch 200b increases. When the angle between the main body 200a and the latch 200b increases, the diameter of the through hole formed in the center of the bobbin case 200 increases. When the diameter of the through hole formed in the center of the bobbin case 200 increases, the bobbin case 200 may be separated from the bobbin holder 100e formed at the end of the shaft 100d. That is, the diameter of the through hole formed in the center of the bobbin case 200 is larger than the diameter of the bobbin holder 100a, which causes the bobbin case 200 to be separated from the bobbin holder 100a.

According to FIG. 7, the b-th cylinder 610 moves downward. Accordingly, the bobbin case 200 accommodated in the bobbin cartridge 100 is separated from the bobbin cartridge 100, and the bobbin case 200 accommodated in the hook 502 is separated from the hook 502.

According to FIG. 8, the a-th cylinder 600 moves in the left direction. Accordingly, the bobbin case 200 separated from the bobbin cartridge 100 moves on an extension line with respect to the point where the hook 502 is located.

According to FIG. 9, the b th cylinder 610 moves upward. Accordingly, the bobbin case 200 separated from the bobbin cartridge 100 is mounted to the hook 502. In addition, although not explicitly shown in FIG. 9, the bobbin case 200 detached from the hook 502 moves to the bobbin case collection box 400.

10 to 13 illustrate an example of supplying a bobbin from a bobbin cartridge formed at a front end of a hook base according to an embodiment of the present invention.

According to Figure 10, the forward and backward moving cylinder 1000 is formed on the side of the bobbin cartridge, the rotating cylinder 1002 is formed at the end of the forward and backward moving cylinder 1000, the bobbin case receiving portion 1006 at the end of the rotating cylinder. ) And a bobbin case inlet portion 1004 are formed.

Hereinafter, the process of supplying the bobbin from the bobbin cartridge formed at the front end of the hook base will be described.

The forward and backward moving cylinder 1000 moves the bobbin case accommodating portion 1006 formed at the end of the rotating cylinder in the bobbin case direction. Thereafter, the bobbin case inlet portion 1004 is inserted between the main body 200a and the latch 200b of the bobbin case 200 to accommodate the bobbin case in the bobbin case accommodating portion 1006.

Thereafter, the forward and backward moving cylinder 1000 moves a predetermined distance in the hook base direction.

11 to 12, the rotary cylinder 1002 formed at the end of the forward and backward position cylinder 1000 rotates the bobbin case accommodating portion 1006 by 180 degrees. The bobbin case accommodated in the bobbin case accommodating part 1006 by the rotation of the bobbin case accommodating part 1006 also rotates 180 °.

Thereafter, as shown in FIG. 13, the forward and backward moving cylinder 1000 moves the bobbin case accommodated in the bobbin case accommodating part 1006 in the hook base direction while the bobbin case is rotated 180 °. The bobbin case accommodated in the bobbin case accommodating part 1006 is mounted to the hook. That is, the forward and backward moving cylinder moves the rotating cylinder in the bobbin cartridge direction while the bobbin case inlet portion 1004 drawn out between the main body 200a and the latch 200b of the bobbin case 200 is pulled out.

14 to 16 illustrate an example of supplying a bobbin from a bobbin cartridge formed on a lower hook base according to an embodiment of the present invention.

According to FIG. 14, a first rotating cylinder is formed at a bobbin cartridge side and a lower end of a hook base, a second rotating cylinder is formed at an end of the first rotating cylinder, and a bobbin case accommodating part and a bobbin at an end of the second rotating cylinder. Case inlet is formed.

Hereinafter, the process of supplying the bobbin from the bobbin cartridge formed at the bottom of the hook base will be described.

The first rotary cylinder 1400 rotates to move the bobbin case accommodating part 1404 formed at the end of the second rotary cylinder 1402 in the bobbin case direction. Thereafter, the bobbin case inlet 1406 is inserted between the main body 200a and the latch 200b of the bobbin case 200 to accommodate the bobbin case in the bobbin case accommodating part 1404.

Thereafter, the first rotating cylinder 1400 rotates in the hook base direction.

According to FIG. 15, in a state in which the first rotating cylinder 1400 is rotated at an angle, the second rotating cylinder 1402 formed at the end of the first rotating cylinder 1400 is 180 degrees of the bobbin case accommodating part 1404. Rotate The bobbin case accommodated in the bobbin case accommodating part 1404 by the bobbin case accommodating part 1404 also rotates 180 °.

Thereafter, as shown in FIG. 16, the first rotating cylinder 1400 rotates the bobbin case accommodated in the bobbin case accommodating part 1404 in the hook base direction while the bobbin case is rotated 180 °. Through this, the bobbin case accommodated in the bobbin case accommodating part 1404 is mounted to the hook. That is, the first rotary cylinder 1400 bobbins the second rotary cylinder 1402 in a state where the bobbin case inlet 1406 drawn between the main body 200a and the latch 200b of the bobbin case 200 is drawn out. Rotate in the direction of the cartridge.

Even when the bobbin cartridge is formed at the top of the hook base, the same applies to the case where the bobbin cartridge is formed at the bottom of the hook base.

As described above, the present invention proposes a method of automatically replacing the bobbin case in which the bobbin is accommodated when the bobbin thread wound up in the bobbin accommodated in the hook is exhausted.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. .

The present invention relates to a bobbin automatic feeder, and relates to a bobbin automatic feeder that automatically pulls out one bobbin from a bobbin-mounted bobbin cartridge and mounts it on a hook.

The bobbin automatic feeding device according to the present invention has an advantage of automatically replacing bobbins when the bobbin wound around the bobbin is exhausted. Therefore, when using another bobbin automatic feeder in the present invention, the manager does not need to replace the bobbin wound around the bobbin every time, it is possible to manage a lot of sewing machine in preparation for the existing.

Claims (8)

A bobbin cartridge in which at least two bobbin-mounted bobbin cases are accommodated; A bobbin cartridge holder for fixing the bobbin cartridge to a hook base of a sewing machine having a hook; And a cylinder for mounting the bobbin case accommodated in the bobbin cartridge to the hook. The method of claim 1, wherein the bobbin cartridge, One side is open, formed in a rod type, the inner housing is empty so that the bobbin case can be accommodated; An elastic member formed inside the other side of the housing case; A shaft positioned inside the accommodating case, extending from one side to one side, and formed in a rod type; A moving member formed at a center thereof to allow the shaft to pass therethrough, coupled to an end of the elastic member, and moving to move from one side of the shaft to the other side by the movement of the elastic member; And a bobbin holder formed at an end of the shaft. The method of claim 2, The size of the cross section of the bobbin holder is a bobbin automatic supply device, characterized in that relatively large compared to the size of the cross section of the shaft. The method of claim 1, wherein the cylinder, A a cylinder reciprocating in a first direction; A b-cylinder formed at an end of the a-cylinder and reciprocating in a second direction perpendicular to the first direction; And a c cylinder formed at an end of the b cylinder and reciprocating in the first direction. The method of claim 4, wherein the b cylinder, Bobbin automatic supply device characterized in that it comprises two bobbin case receiving portion which is accommodated at a portion of the bobbin case at the end. The method of claim 5, wherein the c cylinder, A bobbin automatic feeder, which is inserted between the main body and the latch of the bobbin case and includes a bobbin case inlet formed in a rod type. A bobbin cartridge in which at least two bobbin-mounted bobbin cases are accommodated; A cylinder for supplying a bobbin case accommodated in the bobbin cartridge to a hook base of a sewing machine having a hook, The cylinder, A forward and backward moving cylinder moving in the front and rear direction; It is formed at the end of the forward and backward moving cylinder, the bobbin case receiving portion for receiving a portion of the bobbin case is received at the end and between the main body and the latch of the bobbin case, the bobbin case inlet formed in the rod type is formed, A bobbin automatic feeder, characterized in that it comprises a rotating cylinder for rotating the bobbin case receiving portion. A bobbin cartridge in which at least two bobbin-mounted bobbin cases are accommodated; A cylinder for supplying a bobbin case accommodated in the bobbin cartridge to a hook base of a sewing machine having a hook, The cylinder, A first rotating cylinder rotating at an angle; A bobbin case accommodating part formed at an end of the first rotating cylinder, a bobbin case accommodating part accommodating a part of the bobbin case and a main body of the bobbin case and a latch formed at the end thereof, and having a rod type bobbin case inlet part; And a second rotating cylinder for rotating the bobbin case accommodating portion.

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