JP3745882B2 - Wig sewing machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wig sewing machine.
[0002]
[Prior art and problems to be solved by the invention]
No prior art corresponding to the wig sewing machine according to the present invention has been found, and conventionally, hair has been manually planted on the planting substrate. For this reason, it took time and labor to produce wigs. There are two types of wigs: practice wigs used by barbers and beauticians to practice cutting, etc., and general practical wigs, but both have been done manually.
[0003]
However, since practice wigs are often discarded as they are once used for practice, the quality and durability of practical products are not required. Conventionally, hair has been manually planted for a wig for practice, and it took time and labor more than necessary, and the cost was high.
[0004]
The object of the present invention is to solve the above-mentioned problems and to plant an upper thread instead of hair on a planting base material without using manual work, and to obtain a wig having a necessary and sufficient quality especially for a practice wig. The object is to provide a sewing machine for a wig that can be used.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the wig sewing machine according to the present invention is a wig sewing machine for planting an upper thread instead of hair on a sheet-like planting base material while cutting it into a predetermined length, and is arranged on the sewing machine head. A planting means for planting the upper thread on the planting base material stretched on the frame by the cooperation of a needle provided movably and a hook built in the bed, and an upper thread planted by the planting means An upper thread pulling means for hooking a portion between the needle and the planting base material and pulling it to a predetermined length sideways, and cutting the upper thread pulled by the upper thread pulling means to a predetermined length The upper thread cutting means and the upper thread cutting means between the time when the upper thread is cut by the upper thread cutting means and the time when the upper thread is planted on the planting substrate with the needle by the planting means. Upper thread holding to hold the thread cutting point Characterized by comprising a stage.
Another wig sewing machine according to the present invention is a wig sewing machine for planting an upper thread instead of hair on a sheet-like planting base material while cutting it into a predetermined length, and is provided on the sewing head so as to be movable up and down. Planting means for planting the upper thread on the planting base material stretched on the frame by the cooperation of the needle built in and the hook built in the bed, the needle of the upper thread planted by the planting means, and the An upper thread pulling means by a movable blade (19) provided with an upper thread hooking portion (20) for hooking a portion between the planting base material and pulling it to the side to a predetermined length, and the upper thread pulling means The upper thread cutting means for cutting the upper thread cut into a predetermined length in cooperation with the movable blade (19) and the fixed blade (16) below the upper thread, and the upper thread is cut by the upper thread cutting means. From then on, the upper thread with a needle by the planting means The upper thread holding means for holding the movable thread (19) and the upper thread holding member (22) thereabove to hold the upper thread cutting portion by the upper thread cutting means until it is planted on the base material. The upper thread holding member (22), the movable blade (19), and the fixed blade (16) are all arranged side by side in an up-down oblique shape.
Here, the upper thread hooking portion (20) of the movable blade (19) is formed in a shape that is retracted in a substantially U shape from the side portion on the distal end side of the movable blade (19) toward the distal end side. 19), the upper thread guide groove (21) extending from the notch back part of the upper thread hooking part (20) to the tip side of the movable blade (19) and the rear edge part of the upper thread guide groove (21) The aspect provided with the cutting blade (19a) formed by raising from the lower surface of a movable blade (19) can be illustrated.
Further, the upper thread holding member (22) can be exemplified in such a manner that the base end portion is fixed to the support plate (25) and the distal end portion which is a free end is in contact with the upper surface of the moving blade (19) by elastic force.
[0006]
Although it does not specifically limit as an upper thread | yarn which replaces hair, The thread | yarn made from a synthetic fiber or natural fiber can be illustrated.
[0007]
Although it does not specifically limit as a sheet-like planting base material, A cloth, leather, rubber | gum, a resin-made sheet | seat, etc. can be illustrated.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
1 to 9 show a wig sewing machine 1 according to an embodiment. The wig sewing machine 1 cuts an upper thread T instead of hair into a sheet-like planting base W to a predetermined length. As shown in FIG. 1, an arm 6 is provided on a main body frame (not shown) of the wig sewing machine 1, and a sewing machine head 2 is supported on the arm 6. A needle bar 3 is supported on the sewing machine head 2 so as to be movable up and down, and a needle 4 and a presser foot 5 are attached to the needle bar 3.
[0009]
A balance 7 is disposed above the needle 4 so as to be movable up and down, and an apron 8 is provided between the balance 7 and the needle 4. The frame 9 on which the planting base material W is stretched is disposed above the bed 10. The bed 10 is provided with a needle plate 12 having a needle insertion hole 11, and a hook 13 is installed below the needle plate 12. The upper thread T is supplied from the bobbin through a thread path device (not shown) to the shuttle 13 through the thread guide 14, the balance 7, the apron 8, the needle 4, the presser foot 5, and the needle insertion hole 11. The upper thread T is planted on the planting base W using the lower thread (not shown) fed from the hook 13. An upper thread T is applied to a planting base W in which a needle 4 provided on the sewing machine head 2 so as to be movable up and down and a hook 13 built in a bed 10 cooperating with the needle 4 are stretched around a frame 9. Planting means for planting.
[0010]
A support plate 25 is fixed to the arm 6 in a slanted shape with a front lowering via an attachment member 15, and a fixed blade 16 is fixed in parallel to the support plate 25 at a predetermined interval from the support plate 25 by a support arm 26. A cutting edge 16a is integrally formed at the tip. A movable blade 19 is supported above the fixed blade 16 through a guide 18 so as to be slidable back and forth. A stepping motor 17 is installed behind the fixed blade 16, and the movable blade 19 is slid between a retracted position shown in FIGS. 1 and 4 and an advanced position shown in FIG.
[0011]
As shown in FIG. 2, the movable blade 19 includes an upper thread hooking portion 20, and the upper thread hooking portion 20 is formed in a shape that is retracted in a substantially U shape from the side on the distal end side of the movable blade 19 toward the distal end side. It has been done. When the movable blade 19 returns from the advanced position to the retracted position, the upper thread hooking portion 20 hooks a portion between the needle 4 of the planted upper thread T and the planting base material W to a predetermined side. It is designed to pull out to the length. The movable blade 19 provided with the upper thread hooking portion 20 and the stepping motor 17 are upper thread drawing means.
[0012]
On the lower surface of the movable blade 19, an upper thread guide groove 21 extending from the notch back portion of the upper thread hooking portion 20 to the distal end side of the movable blade 19 and a rear edge portion of the upper thread guide groove 21 are raised from the lower surface of the movable blade 19. And a cutting edge 19a formed by being formed. This cutting blade 19a is used to cut the upper thread T guided by the cutting blade 19a through the upper thread guide groove 21 when the movable blade 19 returns from the forward movement position to the backward movement position, as shown in FIG. In cooperation with the blade 16a, it is cut into a predetermined length. The cutting blade 19a of the movable blade 19 and the cutting blade 16a of the fixed blade 16 are upper thread cutting means.
[0013]
An upper thread holding member 22 is provided above the movable blade 19. The upper end of the upper thread holding member 22 is fixed to the support plate 25, and the distal end, which is a free end, is in contact with the upper surface of the moving blade 19 by elastic force. When the movable blade 19 returns from the advanced position to the retracted position, the upper thread holding member 22 receives the upper thread T hooked on the upper thread hooking portion 20 from the upper surface of the movable blade 19 and the lower surface of the tip of the upper thread holding member 22. Hold between. The clamped upper thread T is released from the clamped state when the movable blade 19 moves from the retracted position toward the advanced position. This upper thread holding member 22 is upper thread holding means.
[0014]
Next, a series of operations of the wig sewing machine 1 configured as described above will be specifically described step by step.
[0015]
(1) First, the needle 4 penetrates the planting base W downward, the upper thread T and the lower thread are entangled by the hook 13, and then the needle 4 slips upward from the planting base W. After the thread T is planted on the planting substrate W, the needle 4 is stopped at the top dead center position as shown in FIG.
[0016]
(2) In synchronism with the stop at the top dead center position of the needle 4, the stepping motor 17 is rotated, and the movable blade 19 is slid to the forward movement position as shown in FIG.
[0017]
(3) Next, the stepping motor 17 is reversely rotated while the balance 7 is being lowered, and as shown in FIG. 6, the upper thread hooking portion 20 moves the needle 4 and the shuttle 13 in the process in which the movable blade 19 moves backward from the advanced position. The upper thread T is hooked to the desired position behind the needle 4 and the upper thread T is pulled out (upper thread pulling means). At this time, since the balance 7 is lowered to loosen the upper thread T as described above, the movable blade 19 can draw the necessary amount accurately without extending the upper thread T.
[0018]
{Circle around (4)} Before the movable blade 19 reaches the retracted position, the upper thread T is sandwiched between the upper surface of the movable blade 19 and the lower surface of the upper thread holding member 22 (upper thread holding means). As shown in FIG. 7, when the movable blade 19 further moves toward the retracted position, the upper thread T is cut by the cutting blade 19a of the moving blade 19 and the cutting blade 16a of the fixed blade 16 (upper thread cutting means). At this time, the cut portion of the hook-side upper thread T that has been cut becomes a free end, but the cutting portion of the needle-side upper thread T is held in a clamped state even when the movable blade reaches the retracted position. Is done.
[0019]
(5) Next, the frame 9 is moved as shown in FIG. 9 while the upper thread T is held by the upper thread holding means, and the planting position S of the next upper thread T is moved to the drop position of the needle 4. Is done. Here, when driving the frame 9, it is preferable that the frame 9 moves in the left-right direction or the rearward direction so that the already planted upper thread T is always at a position outside the needle drop position. FIG. 9 shows an example in which the frame 9 is driven rearward in a zigzag manner as indicated by the two-dot chain line arrow. If it carries out like this, it can avoid that the upper thread T already planted will be sewed repeatedly.
[0020]
(6) Further, as shown in FIG. 8, the needle 4 is driven downward while the upper thread T is held by the upper thread holding means, and the upper thread T is planted on the planting base W (planting means). ), The needle 4 is stopped at the top dead center position. As described above, the upper thread holding means is configured to perform the upper thread T from the time when the upper thread T is cut by the upper thread cutting means until the time when the upper thread T is planted on the planting base W by the needle 4 by the planting means. The cutting part of the upper thread T by the thread cutting means is held. For this reason, when the upper thread T is planted, the upper thread T is not drawn or sewn, so that the upper thread T can be reliably planted on the planting base W.
[0021]
(7) It should be noted that the cutting position of the upper thread T held by the upper thread holding means in the above (4) to (6) is released when the movable blade 19 moves to the advance position in the subsequent (2). Being a free end.
[0022]
(8) Thereafter, the above (2) to (6) are repeated, and the upper thread T instead of the hair is planted on the sheet-like planting base W while being cut to a predetermined length (S, S, …).
[0023]
In addition, this invention is not limited to the structure of the said embodiment, For example, as follows, it can also be changed and embodied suitably in the range which does not deviate from the meaning of invention.
(1) When planting the upper thread T, sew two or more stitches. For example, FIG. 10 shows a case where two stitches 30 are formed by two stitches.
(2) The upper thread cutting means is composed of a pair of moving blades.
(3) Replacing the stepping motor 17 with a geared motor, linear motor, fluid pressure driving means, or the like.
(4) The sewing machine is made into a multi-needle type, and the upper thread T of different types such as thickness, color or material is appropriately switched and planted on the planting base W.
[0024]
【The invention's effect】
As described above in detail, according to the wig sewing machine according to the present invention, the upper thread is not drawn or sewn when the upper thread is planted, so that it can be planted without manual operation. An upper thread in place of hair can be reliably planted on the base material, and an excellent effect that a wig having a necessary and sufficient quality can be obtained especially for a wig for practice can be obtained.
[Brief description of the drawings]
FIG. 1 is a partial side view of a wig sewing machine according to an embodiment of the present invention.
FIG. 2 is a partial perspective view showing upper thread drawing means, upper thread cutting means, and upper thread holding means of the wig sewing machine.
FIG. 3 is a partial side cross-sectional view showing an upper thread drawing means, an upper thread cutting means and an upper thread holding means of the wig sewing machine.
FIG. 4 is a partial side view showing a first state of the wig sewing machine;
FIG. 5 is a partial side view showing a second state of the wig sewing machine;
FIG. 6 is a partial side view showing a third state of the wig sewing machine;
FIG. 7 is a partial side view showing a fourth state of the wig sewing machine;
FIG. 8 is a partial side view showing a fifth state of the wig sewing machine;
FIG. 9 is a plan view showing the planting order of the upper thread of the wig sewing machine.
FIG. 10 is a plan view showing a modified example of an upper thread planting mode of the wig sewing machine.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Wig sewing machine 2 Sewing head 4 Needle 9 Frame 10 Bed 13 Hook 16 Fixed blade 17 Stepping motor 19 Moving blade 20 Upper thread hooking part 22 Upper thread holding member T Upper thread W Planting base material S Upper thread T planting position

Claims (4)

A wig sewing machine for planting an upper thread instead of hair on a sheet-like planting base material while cutting it into a predetermined length,
A planting means for planting the upper thread on the planting base material stretched on a frame by the cooperation of a needle provided on the sewing machine head so as to be movable up and down and a hook built in the bed;
An upper thread pulling means for hooking a portion between the needle of the upper thread planted by the planting means and the planting base material and pulling out a predetermined length sideways;
Upper thread cutting means for cutting the upper thread pulled out by the upper thread drawing means into a predetermined length;
Between the time when the upper thread is cut by the upper thread cutting means and the time when the upper thread is planted on the planting base material by the needle by the planting means, the cutting position of the upper thread is held by the upper thread cutting means. A wig sewing machine comprising upper thread holding means for performing wig sewing. A wig sewing machine for planting an upper thread instead of hair on a sheet-like planting base material while cutting it into a predetermined length,
Planting means for planting the upper thread on the planting base material stretched on the frame by the cooperation of a needle provided on the sewing machine head so as to be movable up and down and a hook built in the bed;
A movable blade (19) provided with an upper thread hooking part (20) for hooking a portion between the needle of the upper thread planted by the planting means and the planting base material and pulling it out to a predetermined length sideways. Upper thread drawing means by
An upper thread cutting means for cutting the upper thread pulled out by the upper thread pulling means into a predetermined length in cooperation with the movable blade (19) and the fixed blade (16) below the upper thread;
From the time when the upper thread is cut by the upper thread cutting means until the time when the upper thread is planted on the planting base material by the planting means, the cutting position of the upper thread by the upper thread cutting means is An upper thread holding means that sandwiches and holds the movable blade (19) and the upper thread holding member (22) thereabove,
A wig sewing machine characterized in that the upper thread holding member (22), the movable blade (19), and the fixed blade (16) are all arranged side by side in an up-down slanting shape. The upper thread hooking portion (20) of the movable blade (19) is formed in a shape that is retracted in a substantially U shape from the side portion on the distal end side of the movable blade (19) toward the distal end side. On the lower surface, an upper thread guide groove (21) extending from the notch back portion of the upper thread hooking portion (20) to the tip side of the movable blade (19) and a rear edge portion of the upper thread guide groove (21) are movable blades ( The wig sewing machine according to claim 2, further comprising a cutting blade (19a) formed by raising from the lower surface of 19). The upper end of the upper thread holding member (22) is fixed to the support plate (25), and the distal end, which is a free end, is in contact with the upper surface of the movable blade (19) by elastic force. Sewing machine for wigs.

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