KR860001537B1 - Embroidery sewing machine - Google Patents

Abstract

Lock sewing machine comprises a needle bar drive means, a thread take-up lever drive means, a cylinder drive means, and a cylinder lifting means. Needle bar drive means comprises needle bar, a guide rod, driven block fixed on the needle bar, link mechanism, and a main drive shaft. The needle bar is slid vertically by the link mechanism. A thread take-up lever drive means comprises a thread take-up lever, a transmission gear, a cam follower, and a cam drive mechanism. Cylinder drive means comprises cylinder, lapping thread bobbin, a driven gear. The cylinder means is lifted by a lifting means when a stretcher is replaced. The machine can perform cord-lapping embroidery.

Description

Embroidery Sewing Machine

The accompanying drawings are embodiments of the present invention.

1 is a side view of the needle bar driving device.

2 is a side view of a weak line of a sewing machine according to the present invention.

Fig. 3 is a side view of the weak line in which part of the second view is seen in the direction of arrow A;

4 is a plan view of the third view from above.

5 is a longitudinal sectional view of the cylinder mechanism.

6 is a side view of the cylinder lifting device.

7 is a plan view of the weak wire removed from the lifting tool of FIG.

FIG. 8 is a weak line top view in which the nut of the locking member of FIG. 7 is pulled out to release the engagement between the support arm and the locking member.

Figure 9 is an enlarged cross-sectional view of the weak line of the bar scale configuration of the sewing machine according to the present invention.

* Explanation of symbols for main parts of the drawings

(a): Needle bar drive (2): Framework

(b): Horizontal drive (4): Needle bar

(c) Cylinder and bobbin rotary drive system (10): Needle

(d) cylinder lifting device 32: third shaft

(α): upper thread 34: second shaft

(α '): Lower thread 64: First shaft

(β): Examination (66): First Bevel Gear

(γ): wound yarn (68): second bevel gear

(70): third bevel gear (88): hole part (needle)

(72): 4th bevel gear (90): Inner cylinder

(74): 5th spur gear (94): cylinder nipple

(76): Outer cylinder portion 108: Annular groove

(78): cylinder flat gear (114): needle hole

(80): horizontal shaft (116): shaped arm part

(82): Vertical Shaft (118): Eccentric Cam

84: Bobbin 120: Cam

(122): Vertical part 142: Wide diameter part

124: protrusion 144: coil spring

126: pin 146: short legs

128: horizontal section 148: element

(130): support arm (150): inner bracket

132: retaining member 152: coil spring

(134): through hole (154): horizontal protrusion

(136): nut 156: drive member

(138): Long leg portion (157): Upper cross section

140: through hole 158: arm shaped arm

The present invention relates to an embroidery sewing machine, and more particularly, to a sewing sewing machine made by winding a thread wound around an examination using a screening in a lock bar using an upper thread and a lower thread on an upper thread of a main bar. will be.

Conventionally, a round bar is used for embroidery to be wound on a cord, and a so-called round bar cord winding embroidery has been performed by co-operating with a looper by stabbing with a coil wound around a cord.

In the present invention, however, an object of the present invention is to provide a machine designed to enable embroidery on a cord using a sewing machine.

Moreover, in this invention, the improvement was added to the winding bobbin of the sewing machine for main thread embroidery mentioned above.

Conventionally used winding bobbins are provided with a protruding angle protruding from the outside of a cylinder outer cylinder, and a bobbin is rotatably attached to an axis inclined at a predetermined angle of this angle.

When the outer cylinder, the inner cylinder, and the thread guide connected to them rotate, the winding wound around the bobbin rotated on the inclined axis of the protrusion angle of the outer cylinder passes through the thread guide. It is wound around the screen drawn from the bobbin, where the thread wound in response to its rotation from the bobbin is released from the bobbin.

Since the above-described rotation of the bobbin and the cylinder cylinder move in accordance with the law of inertia, when the rotation is performed at a certain speed, it tries to maintain the movement in the direction of rotation. Since it is impossible to make the smooth stop of the bobbin, the bobbin rotates through a track away from a predetermined distance around the outer cylinder of the cylinder or disturbs the unwinding state of the thread wound from the bobbin. There is a flaw that requires working away from the bobbin some distance, usually taking care to avoid collision with the bobbin.

Therefore, the applicant of the present invention has been made in order to overcome the above-described deficiency, and an object of the present invention is to provide a novel invention in which the bobbin described above is directly attached to the outer cylinder body.

In addition, although lifting and lowering of a cylinder and a bobbin were conventionally performed by manual operation, it aims at providing the structure which can perform this lifting operation easily mechanically in this invention.

Hereinafter, embodiments of the present invention will be described in accordance with the accompanying drawings.

Sewing machine according to the present invention is largely divided into the following four configurations.

That is, the needle bar drive device (a), the flat drive device (b), the cylinder and bobbin rotary drive device (c), the cylinder lifting device (d). The needle bar driving device (a) has a needle bar (4) installed on the frame (2) in a vertical motion, and an inner rod (6) during the needle bar fixed to the frame (2) in parallel with the needle bar. The upper end is fitted with the collar 8 attached to the base, and the lower end, on which the needle 10 is mounted, passes through the cylinder lifting ring 12 installed at the upper end of the cylinder 14. It can be drowned in the inner hole of 14) and can move up and down inside a cylinder.

모양구동체(20)에 감합하고, 전기한 안내봉(6)에 감삽한 별개의 구동체(22)의

모양의 홈(24)에 감합한다.The protruding end 18 of the driving ball 16 fixed to the needle bar 4 is attached to the inner rod 6 so as to move up and down during the needle bar.

Of the separate drive body 22 fitted to the shape drive body 20 and interpolated to the guide rod 6

It fits into the groove | channel 24 of a shape.

모양 구동체(20)에 추착되고 다른쪽끝(30)은 크랭크본체(33)에 추지된다.One end portion 28 of the tip piece 26 of the crank member 25

It is crushed by the shape drive body 20, and the other end 30 is clamped by the crank body 33. As shown in FIG.

The other end of the crank main body 33 pivotally fits to the 3rd shaft 32, and each part 38 of the eccentric cam 36 which fits the 2nd shaft 34 is a crank main body 33 ) Is screwed by the screw (40).

모양 구동체(20)는 구동체(22)와 아울러 심봉구동안내봉(6)을 껴안고 상하로 접동한다.Therefore, when the eccentric cam 36 moves up and down in response to the rotation of the second shaft 34, the crank main body 33 also moves up and down with the third shaft 32 as the core, and the tip piece 26 Crushed

The shape drive body 20 hugs up and down with the drive body 22 while holding the inner rod 6 during the mandrel.

모양 홉(24)에 감합하고 있는 돌출부(18)를 갖춘 구동불(16)에 고착된 침봉(4)은 상하동을 하는 것이다.At the same time of the drive body 22

The needle bar 4 fixed to the drive impeller 16 having the projection 18 fitted to the shape hop 24 is to move up and down.

On the first horizontal shaft 42 of the planar driving device (b), a drive arm 44 having a gear 46 provided at an end thereof and a water drop fixed to the drive arm 44 to form a predetermined angle with the drive arm ( The arm 54 fits and locks in place.

At the end of the lower arm 54, a cam ball 52 fitted into the cam groove 50 provided in the cam 48 attached to the second shaft 34 is provided. In addition, the second horizontal shaft 56 is rotatably provided with a planar driving box 62 having a gear 60 engaged with the gear 46 that is provided at the other end, and a planar 63 fixed thereto.

At the distal end of Cheonpyeong 63, a ball 58 for holding the upper thread is laid.

As the cam 48 rotates in the same direction due to the rotation of the second shaft 34, the cam ball 52 reciprocates in the cam groove 50 to drive the driving arm 44 through the drooping arm 54. 1 Rotate the horizontal shaft 42 as a core and reciprocate the gear 46 up and down.

The gear 60 of the planar drive box 62 engaged with the gear 46 also performs relative motion at the same time, and the planar 63 rotates up and down with the second horizontal axis 56 as the core, and the drawing is displayed. Although it did not do, the upper thread (α) of the sewing machine inserted into the Cheonpyeong barge 58, in accordance with the timing of the up and down movement of the needle bar (6) to slow down and pull up. The rotational motion of the cylinder and bobbin power drive device (c) is such that the rotational motion of the first shaft 64 is the first bevel gear 66, the second bevel gear 68, the third bevel gear 70, and the fourth bevel. It is transmitted to another flat gear 78 attached to the outer cylinder portion 76 of the cylinder 14 via the gear 72 and the fifth spur gear 74.

The first bevel gear 66 fixed to the first shaft 64 is fitted to the second bevel gear 68 provided at the end of the horizontal shaft 80 disposed at right angles with the first shaft 64, The third bevel gear 70 installed at the other end thereof is engaged with the fourth bevel gear 72 fixed to the upper end of the vertical shaft 82 perpendicularly to the horizontal shaft 80 placed above. The fifth spur gear 74 provided at the lower end of the vertical shaft 82 described above engages with the spur gear 78 of the cylinder provided at the end of the cylinder outer circumference 76.

The cylinder 14 is comprised from the cylinder inner cylinder part 90, the nipple 94 which screw-fits it, and the cylinder outer cylinder part 76 which surrounds both the said member.

The bobbin 84 is rotatably subtracted only in the direction by the direction clutch 86 interposed between the inner cylinder 85 and the outer cylinder 76 on the outer circumference of the outer cylinder portion 76.

The male thread portion 96 provided at the upper end of the nipple 94 of the cylinder is screwed into the female threaded portion 92 provided at the lower end of the inner cylinder portion 90 with the needle rod 10 having a hole 88 into which the needle bar 10 can be inserted. By doing so, both members are configured detachably.

And the outer cylinder portion 76 is made by subtracting the outer circumference of the two members described above, the annular member 100 is mounted on the outer circumference of the lower end is mounted with a guide (98) of the thread (γ), and also the lower portion The retainer nut 102 is fixed with screws.

The vertical groove 104 is installed in one outer circumference of the nipple 94, and the bolt nut 106 installed to reach the vertical groove 104 described above is inserted into the annular member 100 so that the outer cylinder portion ( 16).

At the end of the cylinder inner cylinder 90, a cylinder lifting ring 12 provided at an approximately center portion of the annular groove 108 is fixed.

Reference numeral 110 denotes a storage container disposed between the frame 2 and the inner cylinder portion 90.

In addition, a through hole 112 is laid inside the needle bar 10, and the upper thread α and the screen β are inserted into the through hole.

The upper thread α is inserted into the through hole 112 via the through-hole 63 (shown in FIG. 3) installed in the cloth flat 63, the thread guide (not shown), and the needle bar 6. .

In addition, examination (beta) is supplied from a well-known real feeling apparatus on the through-hole 112 of a needle bar.

When the above-mentioned cylinder picking ring 12 is pulled upward by the cylinder lifting device d installed separately, the inner cylinder portion 90 and the nipple 94 together with the cylinder lifting ring 12 Go to the bolt. Since the end of the nut 106 is slid by a predetermined distance raised along the longitudinal groove 104, the vertical movement of the nipple 94 of the inner cylinder portion 90 can be easily performed.

As described above, the rotational motion transmitted from the first shaft 64 to the cylinder gear 78 via the first bevel gear to the fifth spur gear is the outer cylinder portion 76, the inner cylinder portion 90, The nipple 94, the annular member 100, the guide 98 of the wound γ, and the bobbin 84 wound around the outer cylinder portion 76 are the factors causing the rotational movement in a predetermined direction integrally.

The needle bar 4 is formed by the needle bar driving device (a), and the inner cylinder 90 and the nipple 94 have their upper and lower threads in the study 89 and the cavity 88, respectively. The planar driving device (b), which exercise and regulates the relaxation of the upper thread (α), also cooperatively inserts the nipple hole (95) and the ball (O) of the table (T) into the lower portion of the nipple (94). The sealing material α 'wound around the installed drum 99 is pulled up and entangled to form a direct sealing material on the fabric 97 attached to the embroidery 101 positioned on the table T. do.

At the same time, as described above, the bobbin 84 is rotated by the relational member to which the rotational motion of the first shaft 64 is transmitted, and the winding guide 98 is accompanied by the thread γ wound on the bobbin 84. In accordance with this, since the periphery of the examination (β) released from the needle bar part 88 is moved, and the wound yarn (γ) is rolled up by the examination (β), the upper thread (α) in forming the aforementioned direct bar material Is also entangled with the winding (γ) wound around the examination (β) to form a scale of embroidery according to the present invention.

The entangled state of the thread in the embroidery bar material formation is as shown in FIG.

Next, the lifting device d of the cylinder will be described. This pulling device raises and temporarily stops the outer cylinder portion 90 and the nipple 94 of the cylinder 14 to a predetermined position in order to facilitate the operation of replacing the sewing machine 101 for embroidery. The substantially L-shaped arm portion 116 has a vertical portion 122 having an end with a cambble 120 contacting the cam 118 secured to the second shaft 34 and an engagement protrusion 124 at the end. And a horizontal portion 128 protruding the pin 126 abutting on the support arm 13 described later in the central portion, and pivotally supported on the third shaft 32 at the L-shaped intersection. .

The support arm 130 is configured such that its end is supported by the third shaft 32 and positioned in contact with the lower portion of the pin 126 of the L-shaped arm portion 116 by the locking member 132 as described later. do.

The locking member 132 is inserted into and fixed to the third shaft 32 described above, and the long angle portion 138 of the nut 136 is inserted into the through hole 134 installed at the head thereof, and the end portion of the long angle portion extends. It is inserted into the through hole 140 provided in the support arm 130. The inlet of the through hole 134 described above is formed with a wide diameter portion 142 and accommodates the coil spring 144 wound around the long portion 138 and fixed therein.

The short leg 146 protruding from the nut 136 is slidably positioned in the yosho 148 provided at the end of the locking member 132. And the connecting mechanism for transmitting the lifting motion of the L-shaped arm 116 described above to the cylinder 14 is as follows. The driving guide rod 150 to be pulled up is inserted into the frame 2 to enable vertical movement in parallel with the needle bar 6, and the driving member 156 having a coil spring 152 at the upper end and a horizontal protrusion 154 at the lower end. To lock the outer.

The front end cross-shaped portion 157 fixes the L-shaped arm 158 fitted to the outer ring-shaped groove 108 of the cylinder lifting ring 12 to the aforementioned drive member 156. Next, the operation of the cylinder lifting device d will be described. First, the second shaft 34 rotates so that the wide diameter portion 118b of the eccentric cam 118 contacts the cam ball 120 installed at the end of the vertical portion 122 of the L-shaped arm portion 116. When the arm portion 116 moves to the left in FIG. 2, the horizontal portion 128 is pushed upward with the third shaft 32 as the core.

In this case, the locking member 132 interpolated and fixed to the third shaft 32 moves upward with the rotation of the third shaft 32 to fit the long hair 114 of the nut 136 and the foot. The support arm 130 is pushed upward through the study 140 of the support arm 130, and the pin 126 provided on the horizontal portion 128 of the arm portion 116 is lowered. The protrusion 124 of the horizontal portion 128 of the arm portion 116 can be stopped at the predetermined position while being held at the raised position together with the locking member 132.

At the same time, as the horizontal portion 128 is raised, the protrusion 124 presses and raises the driving member 156 of the impression driving rod upwards against the elastic force of the coil spring 152 via the horizontal protrusion 154. . At the same time, the L-shaped arm 158 fixed to the drive member 156 also moves upward and raises the cylinder pulling ring 12 via the cross-shaped portion 157.

In response to the rise of the cylinder lifting ring 12, the inner cylinder portion 90 and the nipple 94 of the cylinder fixed thereto are also raised, so that the table T fixing the cylinder nipple 94 and the embroidery frame 101 is fixed. It is possible to maintain and support a predetermined gap therebetween.

Therefore, it is possible to carry out the replacement operation of the embroidery frame 101 attached to the base fabric.

When the nipple 94 rises, the end of the bolt nut 106 moves a predetermined distance along the groove 104 of the nipple. Next, the operation of returning the cylinder elevating device d in the raised position to the position of the winch will be described. 8 shows the effect of the drawing.

The nut 136 of the locking member 132 is pulled out together with the long hair 138 to resist the elastic force of the coil spring 144, and the short hair 146 is released from the element 148 and the nut 136 is rotated. By moving the position of the short foot 146 and pressing the end portion of the short foot 146 to the side wall of the locking member 132 as shown in FIG. 8, the long foot 138 is supported by the support arm 130. Departed from the study of 140, the engagement of the support arm 130 and the stopper 132 is released is free to each other. And when the narrow diameter part of the eccentric cam 118 abuts on the cam ball 120 of the vertical part 122 with the rotation of the 2nd shaft 34, the arm part 116 falls and hold | maintains low position and the protrusion ( 124, the driving member 156 is lowered along with the driving guide rod 150 through the horizontal projection 154, and the cylinder inner cylinder 90 through the L-shaped arm 158, the cylinder lifting ring 12 ) And the nipple 94 are lowered to the lower position and returned to the original position.

As described above, in the sewing machine for embroidery according to the present invention, the needle winding drive device, the flat drive device, the cylinder and the bobbin rotary drive device, or the cylinder lifting device can be technically combined with each other, so that the number of cord windings can be efficiently performed. . In addition, the use of tape instead of the screening and winding chambers makes it easy to attach the tape.

As described above, the bobbin according to the present invention is attached to the outer periphery of the cylinder directly, so as to form a predetermined inclination angle on the outer periphery of the cylinder as in the prior art, there is no inconvenience due to inertia and avoids the rotational trajectory. For this reason, there is no need to urge excessive attention to the worker.

Claims (8)

A bobbin attached to the outer circumference of the cylinder 14 in which the needle bar 4 is accommodated inside and the circumference thereof is rotatable in a sewing machine for a lock rod equipped with a needle bar driving device (a) and a cheonpyeong driving device (b). (84), a drive device (c) for rotating the electric cylinders, and a lifting device (d) for lifting and lowering the electric cylinders, are provided, and the winding wound around the screen (β) Embroidery sewing machine, characterized in that the sewing bar made by entangled with the upper thread (α) for sewing the main bar (STITCHING, BINDING). The second bevel gear (68) according to claim 1, wherein the first bevel (66) gear provided on the first shaft (64) is provided on the end of the horizontal shaft (80) disposed at right angles to the first shaft. The third bevel gear 70 is installed at the other end thereof, and the third bevel gear 70 is installed at the upper end of the vertical shaft 82 perpendicular to the horizontal shaft. The fifth spur gear 74, which is installed at the lower end of the vertical shaft, is again engaged with the cylinder 14 and the bobbin 84 moving device that engage the cylinder spur gear 78 installed in the cylinder outer cylinder 76. Sewing machine with embroidery (c). The cam 120 device for elevating the end portion of the L-shaped upper arm portion 116 inserted into the drive shaft 32 to a predetermined position is engaged with the locking member 132 that is fixedly attached to the drive shaft. Cylinder elevating device having a support arm 130 for elevating the L-shaped arm portion, which is lifted by the end portion, to a predetermined position, and a connecting mechanism for elevating the cylinder 14 by transmitting the elevating motion of the L-shaped arm portion. Embroidery sewing machine holding d). 4. The support arm 130 according to claim 3, wherein the end of the long foot 138 is supported by the nut 136 inserted into the through hole 140 having the wide diameter portion 142 provided in the locking member 132. The coil spring 144, which is wound around the long-foot part in the wide diameter part of the locking member through-hole, is submerged in a separate through-hole installed in the A sewing machine for embroidery, which has a short foot (146) sliding on an element (148) at the end of a locking member, and which holds a locking mechanism capable of moving the locking position together with a nut. 4. The driving member 156 according to claim 3, wherein the projection 124 is provided with an end portion of the L-shaped arm portion 116, which is inserted into the driving shaft 32, which is inserted below the inner rod 150 during the impression hole. ) And the lifting motion of the L-shaped arm portion fixed to the driving member by fixing the arm portion that fits the outer circumferential groove of the ring 12 whose tip cross-shaped portion 157 raises the cylinder 14. Embroidery sewing machine having a connecting mechanism to transfer the cylinder to the cylinder. 2. The sewing machine for embroidery according to claim 1, further comprising a bobbin (84) which is attached to the outer circumference of the cylinder (14) via a one-way clutch (86). 7. The sewing machine for embroidery according to claim 6, wherein the sewing machine has a cylinder (14) having an inner cylinder portion (90) and a nipple (94) detachably attached thereto. The cylinder nut 76 is provided with a bolt and nut 106 whose end portion is slidable along the longitudinal groove 104 provided on the outer circumference of the nipple 94 detachably attached to the inner cylinder portion 90. Embroidery sewing machine only screwed to the outer cylinder portion through the annular member (100).

Images